TW200723804A - IP telephone communication system - Google Patents

IP telephone communication system

Info

Publication number
TW200723804A
TW200723804A TW094143068A TW94143068A TW200723804A TW 200723804 A TW200723804 A TW 200723804A TW 094143068 A TW094143068 A TW 094143068A TW 94143068 A TW94143068 A TW 94143068A TW 200723804 A TW200723804 A TW 200723804A
Authority
TW
Taiwan
Prior art keywords
communication device
communication
communication system
telephone communication
dtmf signal
Prior art date
Application number
TW094143068A
Other languages
Chinese (zh)
Other versions
TWI319673B (en
Inventor
Chi-Chiang Huang
Original Assignee
Compal Communications Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compal Communications Inc filed Critical Compal Communications Inc
Priority to TW94143068A priority Critical patent/TWI319673B/en
Publication of TW200723804A publication Critical patent/TW200723804A/en
Application granted granted Critical
Publication of TWI319673B publication Critical patent/TWI319673B/en

Links

Landscapes

  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The invention discloses an IP telephone communication system including a first communication device and a second communication device. When a user uses the first communication device to communicate with the second communication device, the first communication device will transmit an initial signal to the second communication device via a first communication channel. After receiving the initial signal, the second communication device will transmit a DTMF signal back to the first communication device via the first communication channel. When the first communication device receives the DTMF signal, an IP address of the second communication device will be obtained by decoding the DTMF signal. Afterward, according to the IP address, the first communication device is capable of communicating with the second communication device via a second communication channel in VoIP.
TW94143068A 2005-12-07 2005-12-07 Ip telephone communication system TWI319673B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94143068A TWI319673B (en) 2005-12-07 2005-12-07 Ip telephone communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94143068A TWI319673B (en) 2005-12-07 2005-12-07 Ip telephone communication system

Publications (2)

Publication Number Publication Date
TW200723804A true TW200723804A (en) 2007-06-16
TWI319673B TWI319673B (en) 2010-01-11

Family

ID=45073652

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94143068A TWI319673B (en) 2005-12-07 2005-12-07 Ip telephone communication system

Country Status (1)

Country Link
TW (1) TWI319673B (en)

Also Published As

Publication number Publication date
TWI319673B (en) 2010-01-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees