JP2006319699A - 停電対応パケット電話システム - Google Patents
停電対応パケット電話システム Download PDFInfo
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- JP2006319699A JP2006319699A JP2005140698A JP2005140698A JP2006319699A JP 2006319699 A JP2006319699 A JP 2006319699A JP 2005140698 A JP2005140698 A JP 2005140698A JP 2005140698 A JP2005140698 A JP 2005140698A JP 2006319699 A JP2006319699 A JP 2006319699A
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Abstract
【解決手段】 パケット通信回線(例、IP回線)を回線中継装置30を介して1または複数のパケット電話機50−1〜50−nに接続するパケット電話システムにおいて、回線中継装置は給電能力を有する電話回線(例、公衆回線)を収容するとともに、回線中継装置の電源部が停止した時パケット電話機を電話回線に自動的に切続する手段を具備したことを特徴とする。
【選択図】図1
Description
Claims (3)
- パケット通信回線を回線中継装置を介して1または複数のパケット電話機に接続するパケット電話システムにおいて、前記回線中継装置は給電能力を有する電話回線を収容するとともに、前記回線中継装置の電源部が停止した時前記パケット電話機を前記電話回線に自動的に切続する手段を具備したことを特徴とする停電対応パケット電話システム。
- 請求項1記載の停電対応パケット電話システムにおいて、前記回線中継装置と前記パケット電話機を4本以上の芯線を有するケーブルを介して接続するとともに、前記ケーブルのパケット通信回線と接続される芯線以外の芯線により前記電話回線と接続することを特徴とする停電対応パケット電話システム。
- 請求項1または2記載の停電対応パケット電話システムにおいて、前記回線中継装置は、前記電話回線と任意のパケット電話機とを接続する時、前記任意のパケット電話機以外のパケット電話機と前記電話回線との接続を自動的に禁止する手段を具備したことを特徴とする停電対応パケット電話システム。
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JP2005140698A JP4603417B2 (ja) | 2005-05-13 | 2005-05-13 | 停電対応パケット電話システム |
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JP2005140698A JP4603417B2 (ja) | 2005-05-13 | 2005-05-13 | 停電対応パケット電話システム |
Publications (3)
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JP2006319699A true JP2006319699A (ja) | 2006-11-24 |
JP2006319699A5 JP2006319699A5 (ja) | 2008-06-26 |
JP4603417B2 JP4603417B2 (ja) | 2010-12-22 |
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JP2005140698A Active JP4603417B2 (ja) | 2005-05-13 | 2005-05-13 | 停電対応パケット電話システム |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7944911B2 (en) | 2005-10-06 | 2011-05-17 | Sharp Kabushiki Kaisha | Network device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10271243A (ja) * | 1997-03-21 | 1998-10-09 | Victor Co Of Japan Ltd | Lan電話機 |
JP2001024820A (ja) * | 1999-07-12 | 2001-01-26 | Nippon Telegr & Teleph Corp <Ntt> | 通信装置、およびその制御方法を記録した記憶媒体 |
JP2003289397A (ja) * | 2002-03-27 | 2003-10-10 | Fujitsu Ltd | 回線制御装置 |
JP2004080482A (ja) * | 2002-08-20 | 2004-03-11 | Ntt Communications Kk | VoIP用アダプタ |
JP2005086286A (ja) * | 2003-09-05 | 2005-03-31 | Sharp Corp | 電話装置 |
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2005
- 2005-05-13 JP JP2005140698A patent/JP4603417B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10271243A (ja) * | 1997-03-21 | 1998-10-09 | Victor Co Of Japan Ltd | Lan電話機 |
JP2001024820A (ja) * | 1999-07-12 | 2001-01-26 | Nippon Telegr & Teleph Corp <Ntt> | 通信装置、およびその制御方法を記録した記憶媒体 |
JP2003289397A (ja) * | 2002-03-27 | 2003-10-10 | Fujitsu Ltd | 回線制御装置 |
JP2004080482A (ja) * | 2002-08-20 | 2004-03-11 | Ntt Communications Kk | VoIP用アダプタ |
JP2005086286A (ja) * | 2003-09-05 | 2005-03-31 | Sharp Corp | 電話装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7944911B2 (en) | 2005-10-06 | 2011-05-17 | Sharp Kabushiki Kaisha | Network device |
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