CN109587361B

CN109587361B - Campus local area network VoIP system based on IBX1000

Info

Publication number: CN109587361B
Application number: CN201811613947.4A
Authority: CN
Inventors: 张玲丽
Original assignee: Wuhan Polytechnic University
Current assignee: Dragon Totem Technology Hefei Co ltd; Hangzhou Huixin Education Technology Co.,Ltd.
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2020-09-25
Anticipated expiration: 2038-12-27
Also published as: CN109587361A

Abstract

The invention discloses a campus local area network VoIP system based on IBX1000, which designs the whole VOIP network and plans IP address and telephone number through a type-selecting network connection device; the service of the network center connected to the campus network from the IBX1000 is mainly realized through a three-layer switch ZXR 103928, the three-layer switch is connected to a firewall of the center and then connected to the campus network, and the data networks of other training rooms are connected to the three-layer switch through local area networks in the local area brought by respective authority switches, so that the method has the following advantages: on the basis of keeping the original data network, the invention adds a small amount of network connection equipment, constructs a practical training room and even a campus VoIP network, can effectively save school-level telephone charge, and has low cost of the whole system.

Description

Campus local area network VoIP system based on IBX1000

Technical Field

The invention relates to the field of campus construction, in particular to a campus local area network VoIP system based on IBX 1000.

Background

With the development of data networks in campus networks to multi-service, multi-access mode, high quality and high guarantee, the utilization rate of network resources is improved, the use frequency and the high telephone charges of PSTN private networks in internal parks such as enterprise networks and campus networks are reduced, VoIP deployment in campus networks is imperative, PSTN is based on circuit switching, and support for proliferation services is increasingly careless and cannot be integrated with mobile networks. VoIP has been rapidly developed worldwide because it promotes the utilization of network resources and reduces the cost of voice services. Although there are still many problems to be solved in the aspects of voice quality, lack of IP addresses, power supply, numbering system, etc., the development of the technology itself and the increasing suggestion of people's needs make the technology need to be continuously updated, and also promote the rapid development of VoIP in the scope of intranets such as campus networks, etc. At present, the 4G mobile communication technology widely adopted globally is named as VoLTE, i.e. Voice over LTE, which is also a transmission technology for uniformly loading data and Voice services on an IP data network, and provides high-quality audio and video calls.

At present, local area networks of many schools are relatively perfect, but special telecommunication lines are still adopted in the aspect of fixed telephone, so that a lot of telephone charge expenses are added to the schools, the invention aims to research and utilize VoIP to construct a campus IP telephone system, explores implementation methods such as hardware composition, structure and practical application configuration of the system, and aims to practice on a floor where equipment is located and even an entire building in consideration of construction cost and difficulty in coordination and planning of various aspects. On the basis of protecting the original data network, only a small amount of network connection equipment (switches, routers and the like) is added as much as possible, and the existing commercial soft switch equipment is utilized to construct a training room and even a campus VoIP network.

Disclosure of Invention

The technical scheme adopted by the invention for solving the technical problem is to construct a campus local area network VoIP system based on IBX1000, which comprises a main school zone system and comprises the following components:

the soft switching equipment ZXECS IBX1000 is connected with the PSTN in the campus and used for carrying out voice call data communication;

the three-layer switch ZXR 103928 is connected with the soft switch device ZXECS IBX1000 in a communication way and used for exchanging voice call data;

a WEB server, which is communicatively connected to the soft switch ZXECS IBX1000 and is used for realizing the exchange of communication data with external equipment through the Internet;

the first ethernet switch ZXR102826, which is communicatively connected to the soft switch ZXECS IBX1000 for exchanging voice and/or video call data, and communicates voice call data through the IAD, and connects to the video phone for exchanging video call data, and connects to the SIP software end through the router for exchanging next generation network NGN communication data;

a multicast server communicatively coupled to the three-tier switch ZXR 103928 for implementing multicast services;

the authority switch ZXR102818 is connected to the three-layer switch ZXR 103928 in an uplink mode, and is connected to the teaching management system and other Ethernet switches ZXR102826 in the first type training room in the school in a downlink mode, and the authority switch ZXR102818 is used for realizing authority control of communication data passing through the authority switch 35102818, and the authority control is set by the teaching management system; in the first type of training room, each ZXR102826 is connected with a plurality of experimental PCs; meanwhile, a plurality of SDH devices are connected to the rights switch ZXR102818 to implement a synchronous digital hierarchy by performing data transmission at the rights switch ZXR 102818;

the ethernet passive optical network device ZXA 10C 220 is connected to the authority switch ZXR102818 in an uplink manner, and is respectively connected with two optical cats F460 in a downlink manner through an ODN, wherein the two optical cats F460 are used for connecting a PSTN, a video telephone and a PC in a school administration;

the primary light splitting device is connected to the authority switch ZXR102818 in an uplink mode, the downlink is connected to the second type practical training room through the secondary light splitting device, the secondary light splitting device in the second type practical training room is connected to the optical modem F460 in a downlink mode through EPON + LAN, the optical modem F460 is connected to the switch in a downlink mode, and the switch is connected with the plurality of experimental PCs in the second type practical training room.

Preferably, in the IBX 1000-based campus local area network VoIP system of the present invention, the first type of training room comprises a plurality of ZXR102826 connected in series, wherein the 24 th pin of the first cascade ZXR102826 is connected to the 16 th pin of the authority switch, and the 21 st pin is connected to the teacher PC; the 23 rd pin of each cascade ZXR102826 is used for cascading the 24 th pin of the next stage ZXR102826, and the 1 st to 20 th pins of each cascade ZXR102826 are used for connecting student PCs.

Preferably, in the campus local area network VoIP system based on IBX1000, ZXECS IBX1000 supports E1 numbers 0-12, and supports three types of PSTN protocols of NO.7, PRI and NO.1 for connecting campus PSTN.

Preferably, the campus lan VoIP system based on IBX1000 of the present invention further comprises a school zone system, wherein the teaching management system is connected to the internet sequentially through a main school zone switch and a main school zone router, and then connected to a school zone switch and a school zone router of a school zone sequentially through the internet, and the school zone system comprises:

the soft switching equipment ZXECS AG is connected with the PSTN in the subarea campus to carry out the communication of voice call data;

a partition three-layer switch ZXR 103928, communicatively connected to the soft switch device ZXECS AG, for exchanging voice call data;

the partitioned WEB server is communicatively connected to the soft switch ZXECS AG and is used for realizing the exchange of communication data with external equipment through the Internet;

the first partition ethernet switch ZXR102826, which is communicatively connected to the soft switch device ZXECS AG for exchanging voice and/or video call data, and communicates the voice call data through the IAD, and is connected to the partition videophone for exchanging video call data, and is connected to the SIP software end through the router for exchanging next generation network NGN communication data;

a partition multicast server communicatively coupled to partition three-tier switch ZXR 103928 for implementing multicast services;

the system comprises a partition authority switch ZXR102818, an uplink switch ZXR 103928, a downlink switch ZXR102826 and other Ethernet switches in a first type training room in a school, wherein the partition authority switch ZXR102818 is connected to the partition three-layer switch ZXR 103928, the downlink switch is connected to a partition teaching management system and other Ethernet switches ZXR102826 in the first type training room in the school, the partition authority switch ZXR102818 is used for realizing authority control of communication data, and the partition authority control is set by the partition teaching management system; in the first type of training room, each ZXR102826 is connected with a plurality of experimental PCs; meanwhile, a plurality of SDH devices are connected to the rights switch ZXR102818 to implement a synchronous digital hierarchy by performing data transmission at the rights switch ZXR 102818;

the partitioned ethernet passive optical network device ZXA 10C 220 is connected to the partitioned authority switch ZXR102818 in the uplink, and is connected to two optical cats F460 in the downlink through the ODN, respectively, and the two optical cats F460 are used for connecting the PSTN, the video telephone and the PC in the school administration;

the partition first-level light splitting device is connected to a partition authority switch ZXR102818 in an uplink mode, the downlink is connected to a second type practical training room through a partition second-level light splitting device, the partition second-level light splitting device in the second type practical training room is connected to the optical modem F460 in a downlink mode through EPON + LAN, the optical modem F460 is connected to the switch in a downlink mode, and the switch is connected with a plurality of experimental PCs in the second type practical training room.

Preferably, in the campus local area network VoIP system based on IBX1000 of the present invention, each school zone ZXECS AG registers with the main school zone ZXECS IBX1000, and the main school zone ZXECS IBX1000 distributes phone short numbers uniformly; the call in the branch school zone is removed to the local PSTN and passes through ZXECS IBX1000 in the main school zone, and the main school zone realizes charging and school-level telephone charge saving; the ZXECS IBX is internally provided with PBX supplementary service and value added service.

Preferably, in the campus local area network VoIP system based on IBX1000 of the present invention, the device IP and phone short number of each school zone and main school zone are planned uniformly.

Preferably, in the IBX 1000-based campus lan VoIP system of the present invention, the main school zone system and the branch school zone system:

the 17 th, 18 th, 20 th, 21 th and 22 th pins of the three-layer switch ZXR 103928 are respectively connected to the corresponding soft switch device, WEB server, the first ethernet switch ZXR102826, the 12 th pin of the authority switch ZXR102818, multicast server and the ethernet passive optical network device ZXA 10C 220;

pins

2, 3 and 4 of the permission switch ZXR102818 are each connected to an SDH device,

pins

13 and 14 are connected to the teaching management system to respectively uplink and downlink data,

pins

15 and 16 are respectively used for connecting pin 24 of the first cascade ZXR102826, and pin 1 is connected to the ethernet passive optical network device ZXA 10C 220.

Preferably, in the IBX 1000-based campus lan VoIP system of the present invention, the first type of training room includes: the data and EPON training room and the soft switch and transmission training room, the second type training room comprises: engineering training room.

The campus local area network VoIP system based on IBX1000 has the following beneficial effects: on the basis of keeping the original data network, the invention adds a small amount of network connection equipment, constructs a practical training room and even a campus VoIP network, can effectively save school-level telephone charge, and has low cost of the whole system.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of a main school zone system in a campus local area network VoIP system based on IBX 1000;

FIG. 2 is a schematic diagram of a plurality of campus area network VoIP systems based on IBX 1000;

fig. 3 is a diagram of implementing a VoIP topology across school zones.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1, the campus local area network VoIP system based on IBX1000 includes a main school zone system, including:

In the campus local area network VoIP system based on IBX1000, the first type training room comprises 2 ZXR102826 connected in series, wherein the 24 th pin of the first ZXR102826 connected in series is connected to the 16 th pin of the authority switch, and the 21 st pin is connected to a teacher PC; the 23 rd pin of each cascade ZXR102826 is used for cascading the 24 th pin of the next stage ZXR102826, and the 1 st to 20 th pins of each cascade ZXR102826 are used for connecting student PCs.

Referring to fig. 2, the campus local area network VoIP system based on IBX1000 of the present invention further includes a school zone system. The ZXECS IBX1000 is selected In the main school district, is integrated comprehensive service switching equipment with complete functions, inherits the design concept of All-In-One, integrates the complete set of voice, data, Internet services and rich value-added service application into a single system, fuses voice and data, and provides various functions required by enterprises In a modular form. The ZXECS IBX1000 supports E1 numbers of 0-12, and supports three types of PSTN protocols of NO.7/PRI/NO.1, so that the purchase cost is low, and the deployment is easy. The matched charging server (software product, the server hardware can be used for convenience) is convenient for monitoring the voice service of the staff, and the statistical single machine supports 2000 SIP users to the maximum extent, thereby meeting the future extension of schools. ZXECS AG is connected with PSTN through FXO, and is convenient to communicate with local PSTN. And a certain convergence ratio is provided, for example, only 12 PSTN external lines are provided, and 24 extension sets can be connected inside. Provides simple automatic check-in service, responds to the automatic check-in machine in the main school zone, and does not occupy the resources of the main school zone.

The teaching management system of main school district loops through main school district switch and main school district router and is connected to the internet, then connects to the branch school district switch and branch school district router of branch school district in proper order through the internet, and the branch school district system contains:

Each branch school zone ZXECS AG registers to a main school zone ZXECS IBX1000, and telephone short numbers are uniformly distributed by the main school zone ZXECS IBX 1000; the call in the branch school zone is removed to the local PSTN and passes through ZXECS IBX1000 in the main school zone, and the main school zone realizes charging and school-level telephone charge saving; the ZXECS IBX is built-in to support PBX supplementary services (call forwarding, forking, etc.), value added services (automatic value machine, voice mailbox, one-number, fax-to-mail, conference call). The ZXECS IBX is internally provided with a CTI (computer telephony integration) supporting interface, and the call center application can be conveniently realized by purchasing call center service software; the scheme fully considers the practical problem of the user and the future business requirement, and brings immeasurable convenience and later-period benefits for the industry user. And uniformly planning equipment IP and telephone short numbers of each branch school zone and the main school zone.

Wherein in main school district system and the branch school district system:

pins 2, 3 and 4 of the permission switch ZXR102818 are each connected to an SDH device, pins 13 and 14 are connected to the teaching management system to respectively uplink and downlink data, pins 15 and 16 are respectively used for connecting pin 24 of the first cascade ZXR102826, and pin 1 is connected to the ethernet passive optical network device ZXA 10C 220. Preferably, in the IBX 1000-based campus lan VoIP system of the present invention, the first type of training room includes: the data and EPON training room and the soft switch and transmission training room, the second type training room comprises: engineering training room.

Voice is an analog signal and IP networks transport digital signals, so in order for a router to be able to handle voice, a device must be installed that is able to interpret analog signals into a digital format that can be transported over IP networks. Voice Network Modules (VNMs) are designed to achieve this and require at least one VNM per router to handle Voice traffic. To implement VoIP at a Cisco router, it is first necessary to understand the different types of hardware and router ports required for VoIP technology. The voice network module and voice interface card use VoIP commands to enable voice communication over the Cisco router. Routers equipped with voice functionality modules may be selected to build VoIP across multiple parks within an enterprise or organization without purchasing relatively expensive IP-based voice servers. Chosen here is 2811 of Cisco, which also allows for simulation in a Cisco Packet tracker simulator. Cisco's many kinds of routers can be equipped with voice function module, for example, 18, 28, 38 series all have corresponding function, the invention only needs to make corresponding configuration on it, can realize VoIP, the built cross-network section realizes VoIP topological diagram as shown in FIG. 3.

In fig. 3, one campus of a school is shown on the left, another campus is shown on the right, and the middle is connected via an IP network. 2811 is the most central device in this environment, on which most configurations of the present invention are built. Since the ports of the router are precious, the invention selects a common two-layer switch to provide more interfaces. The telephone types are more, there are IP telephone, analog telephone, and soft telephone installed on PC and PDA, PC and IP telephone can be connected to the exchanger directly, but analog telephone needs household access gateway to connect to the exchanger, wireless AP is used to provide mobile office or PDA device supporting soft IPhone flexible access network, here, after completing corresponding configuration, it can make any communication between two garages.

The key configuration in the school zone in the implementation comprises the configuration of establishing a DHCP address pool and starting a voice server at a router end, and the like, and the configuration of establishing a telephone number and binding the telephone number and a telephone set, and the communication in the campus can be tested after the configuration is finished. To implement the communication across the campus, the configuration of the dialup phone pair is also needed, and the configuration of the dialup phone pair is shown in the focus here, and the key configuration on the router of 2811 in the school zone 1 is as follows.

Router(config)#dial-peer voice 1voip

Router(config-dial-peer)#destination-pattern 8888....

Router(config-dial-peer)#session target ipv4:192.168.2.254

To enter the dial pair configuration mode, a dial-peer voice TAG { voip | spots | ivr } global configuration command may be used, the TAG being the ID number of the dial-peer that the user wants to create or configure, which is a unique decimal number representing the peer. Which takes values from 1 to 2147483647, 2-1, noting that the ID number is unique only to the local router, so this number can be used on another router without affecting the current configuration.

voip is the dialed pair connected through IP network, spots is the dialed pair connected through traditional telecommunication network, IVR is the dialed pair of interactive voice response IVR connection type, default this parameter is all, i.e. all dialed pairs are selected. It should be noted that when the ID input by the user already exists in the dial-peer table and the patterns match, the dial-peer configuration mode is entered to perform configuration modification on the corresponding dial-peer; and if the ID input by the user exists in the dial-peer table and the modes are not matched, prompting the user whether to create a new dial-peer and replace the original dial-peer, and if the user selects 'yes', creating a new dial-peer and deleting the original dial-peer with the ID, and then entering a dial-peer configuration mode for configuration. If no, returning to the global configuration mode; if the ID input by the user does not exist in the dial-peer table, a dial-peer is newly established and enters a dial-peer configuration mode to configure the ID. When the user inputs a normal-peer voice command, if the normal-peer with the set ID exists, deleting the command, otherwise, prompting the user; if all is selected, all dial-pers are deleted after prompt confirmation. At the same time, only one user can configure the dial-peer, otherwise, if a plurality of telnet users configure the dial-peer simultaneously, configuration errors will be caused.

A destination-pattern 8888.. command is used to define the phone number or number prefix called by the peer, matching the eight-bit phone number prefixed with 8888, each point being a wildcard representing a one-bit phone number. The session target ipv4:192.168.2.254 command may specify the IP address, domain name, gatekeeper, etc. of the host when matching the peer, i.e., the remote IP host specified for handling the call.

Similarly, the router of 2811 in the school zone 2 can be configured similarly, and req-qos controlled-load can be input in the configuration mode of the dial-up peer, so as to enable the RSVP protocol to ensure that voice streams can be processed preferentially even if bandwidth is congested and overloaded when bandwidth is allocated. Meanwhile, the priority of the designated voip voice packet can be set by using an ip precedence 2 command, the value range of the priority is an integer from 0 to 7, the smaller the value is, the higher the priority is, and the default of the system is set to 0. Enabling the above configuration can ensure that voice traffic acquires a specific QoS in the network.

Through the configuration, after a few minutes, all the telephones can be successfully registered and acquire the respective telephone numbers, then, a dialing test is carried out, and all the terminals are in normal voice communication.

The method is characterized in that a show ephone command is input in a privilege mode, the registration information of all telephones can be seen, the defined telephone type is required to be matched with the real situation, the type of a simulated telephone is ata, the type of a soft telephone is cipc, and the type of an IP telephone is 7960.

The above configuration process can complete a complete process of establishing VoIP communication at the router, triggering the application signaling layer function of IOS of the Cisco router from the moment the user goes off-hook, the user dials the correct telephone number, which is mapped to an IP host by the dial plan mapping table, matches the last VoIP dial peer statement, and is directed to the terminating voice router. The receiving router is connected directly to the terminal station through the corresponding port, then the session application program will start the H.323 protocol to establish the transceiving channel for each call on the network, and the codec activity at both ends of the channel will happen to ensure the correct compression/decompression algorithm supported. After the channel is established, all call progress instructions and signaling are immediately transmitted to the receiving entity for decoding or display. When either end of the call session sends an "on-hook" signal, the call ends, and both ends of the circuit go back to "dormant" state, waiting for the start of another initial session.

The correct configuration and execution of a plurality of commands realize the establishment of a small VoIP environment, and the realization of the method only deploys and develops services on the existing platform and IOS, and a plurality of network elements, protocols, services and the like at the bottom layer are responsible, so that the whole system can work and operate orderly. When applying this deployment on real devices, the dialling plan, number extension, QoS on VoIP over leased lines, etc. are also taken into full account. Of course, the deployment still has its application value, for example, many schools and organizations are using the PBX to process voice application, it is sensible to use the deployment to make up for "blank" areas in the network to implement dual circuit redundancy backup, in case of unexpected problems in the IP network, the connection to the PBX is still available, and vice versa, the difficulty of performing offline troubleshooting is greatly reduced, and the time for maintenance and troubleshooting is completely transparent to the end user.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An IBX 1000-based campus local area network VoIP system is characterized by comprising a main school zone system, and the system comprises:

the primary optical splitter is connected to the authority switch ZXR102818 in an uplink mode, the downlink is connected to the second type practical training room through the secondary optical splitter, the secondary optical splitter in the second type practical training room is connected to the optical modem F460 in a downlink mode in an EPON + LAN mode, the optical modem F460 is connected to the switch in a downlink mode, and the switch is connected with a plurality of experimental PCs in the second type practical training room;

still contain the branch school district system, teaching management system loops through main school district switch and main school district router and is connected to the internet, then connects gradually to the branch school district switch and the branch school district router in branch school district through the internet, and branch school district system contains:

the system comprises a partition first-level light splitting device, a partition second-level light splitting device, an EPON + LAN mode, an optical modem F460, a switch and a plurality of experimental PCs, wherein the partition first-level light splitting device is connected to a partition authority switch ZXR102818 in an uplink mode, the downlink is connected to a second-type practical training room through the partition second-level light splitting device, the partition second-level light splitting device in the second-type practical training room is connected to the optical modem F460 in a downlink mode through;

each branch school zone ZXECS AG registers to a main school zone ZXECS IBX1000, and telephone short numbers are uniformly distributed by the main school zone ZXECS IBX 1000; the call in the branch school zone is removed to the local PSTN and passes through ZXECS IBX1000 in the main school zone, and the main school zone realizes charging and school-level telephone charge saving; the ZXECS IBX is internally provided with a PBX supplementary service and a value added service;

wherein the router configures at least one VNM to handle voice traffic; the configuration in each school zone comprises the configuration of creating an address pool of DHCP by a router end, starting a voice server, creating a telephone number and binding the telephone number and a telephone.

2. The IBX 1000-based campus area network VoIP system of claim 1, wherein the first type of training room comprises a plurality of ZXR102826 cascade-connected in sequence, wherein the 24 th pin of the first cascade-connected ZXR102826 is connected to the 16 th pin of the rights switch, and the 21 st pin is connected to a teacher PC; the 23 rd pin of each cascade ZXR102826 is used for cascading the 24 th pin of the next stage ZXR102826, and the 1 st to 20 th pins of each cascade ZXR102826 are used for connecting student PCs.

3. The IBX1000 based VoIP system on campus local area network as claimed in claim 1, wherein ZXECSIBX1000 supports E1 numbers 0-12, and supports three PSTN protocols No.7, PRI, No.1 for connecting campus PSTN.

4. The IBX1000 based VoIP system on campus area network as claimed in claim 1, wherein the IP and phone numbers of the equipments in each school zone and the main school zone are uniformly planned.

5. The IBX 1000-based campus local area network VoIP system of claim 1, wherein in the main school zone system and the sub-school zone system:

pins 2, 3 and 4 of the permission switch ZXR102818 are each connected to an SDH device, pins 13 and 14 are connected to the teaching management system to respectively uplink and downlink data, pins 15 and 16 are respectively used for connecting pin 24 of the first cascade ZXR102826, and pin 1 is connected to the ethernet passive optical network device ZXA 10C 220.

6. The IBX 1000-based campus area network VoIP system according to claim 1, wherein the first type of training room comprises: the data and EPON training room and the soft switch and transmission training room, the second type training room comprises: engineering training room.