Telephony

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IP PBX with 2 FXO All-in-One telephony system supports inter

3 元券

￥1891; 0去看看
IP PBX with 2 FXO All-in-One telephony system supports inter

原厂正品CS42L73-CRZ全新IC CODEC AUD TELEPHONY 64WL

￥83.1; 0去看看
原厂正品CS42L73-CRZ全新IC CODEC AUD TELEPHONY 64WL

正品NAU8812RG原装IC CODEC VOICE TELEPHONY 28SSOP

￥12.9; 0去看看
正品NAU8812RG原装IC CODEC VOICE TELEPHONY 28SSOP

正品NAU8812YG原装IC CODEC VOICE TELEPHONY 32QFN

￥22.7; 0去看看
正品NAU8812YG原装IC CODEC VOICE TELEPHONY 32QFN

原厂正品CS42L73-CRZR全新IC CODEC AUDIO/TELEPHONY 6

￥49.4; 0去看看
原厂正品CS42L73-CRZR全新IC CODEC AUDIO/TELEPHONY 6

全新CS42L73-CRZR原装(IC CODEC AUDIO/TELEPHONY 65

￥84.6; 0去看看
全新CS42L73-CRZR原装(IC CODEC AUDIO/TELEPHONY 65

全新CS42L73-CRZ原装(IC CODEC AUD TELEPHONY 64WLC

￥84.6; 0去看看
全新CS42L73-CRZ原装(IC CODEC AUD TELEPHONY 64WLC

【预售】Wireless Telegraphy and Telephony: An

90 元券

￥412; 0去看看
【预售】Wireless Telegraphy and Telephony: An

[预订]The Thermionic Valve and Its Developments in Radiotelegraphy and Telephony 9781015773448

60 元券

￥289; 0去看看
[预订]The Thermionic Valve and Its Developments in Radiotelegraphy and Telephony 9781015773448

【预售】Enterprise Networks and Telephony: From Technology

90 元券

￥458; 0去看看
【预售】Enterprise Networks and Telephony: From Technology

预订 The Wonder Phone in the Land of Miracles: Mobile Telephony in Israel 在神奇土地上的神奇电话: 以色列的移动电话: 9781

90 元券

￥478; 0去看看
预订 The Wonder Phone in the Land of Miracles: Mobile Telephony in Israel 在神奇土地上的神奇电话: 以色列的移动电话: 9781

预订 Wireless Telephony: In Theory And Practice (1908): 9781165842360

90 元券

￥490; 0去看看
预订 Wireless Telephony: In Theory And Practice (1908): 9781165842360

【预售】Wireless Telephony, in Theory and Practice

60 元券

￥327; 0去看看
【预售】Wireless Telephony, in Theory and Practice

预订 Telephony: 9781146659468

90 元券

￥494; 0去看看
预订 Telephony: 9781146659468

预订 Modern American Telephony in All Its Branches ...: 9781147533330

90 元券

￥504; 0去看看
预订 Modern American Telephony in All Its Branches ...: 9781147533330

[预订]Telegraph And Telephone Age: Telegraphy-Telephony-Radio, (Jan. - Dec., 1917) 9781013585845

90 元券

￥507; 0去看看
[预订]Telegraph And Telephone Age: Telegraphy-Telephony-Radio, (Jan. - Dec., 1917) 9781013585845

预订 Telephony: 9781296908966

90 元券

￥510; 0去看看
预订 Telephony: 9781296908966

[预订]Multiplex Telephony and Telegraphy by Means of Electric Waves Guided by Wires 9781019006122

60 元券

￥354; 0去看看
[预订]Multiplex Telephony and Telegraphy by Means of Electric Waves Guided by Wires 9781019006122

【预售】Wi-Fi Telephony: Challenges and Solutions for Voice

90 元券

￥532; 0去看看
【预售】Wi-Fi Telephony: Challenges and Solutions for Voice

现货英文原版 IP 电话：部署 VoIP 协议和 IMS 基础设施IP Telephony:Deploying VoIP Protocols and IMS Infras 9780470665848

30 元券

￥683.2; 0去看看
现货英文原版 IP 电话：部署 VoIP 协议和 IMS 基础设施IP Telephony:Deploying VoIP Protocols and IMS Infras 9780470665848

【预售】Asterisk: The Definitive Guide: Open Source Telephony for the Enterprise

90 元券

￥545; 0去看看
【预售】Asterisk: The Definitive Guide: Open Source Telephony for the Enterprise

预订 Voip and Unified Communications: Internet Telephony and the Future Voice Network 蓝牙声麦与整合通讯：互联网电话和未

120 元券

￥731; 0去看看
预订 Voip and Unified Communications: Internet Telephony and the Future Voice Network 蓝牙声麦与整合通讯：互联网电话和未

【预售】Freepbx 2.5 Powerful Telephony Solutions

90 元券

￥549; 0去看看
【预售】Freepbx 2.5 Powerful Telephony Solutions

预订 Telephony, the Internet, and the Media

90 元券

￥589; 0去看看
预订 Telephony, the Internet, and the Media

[预订]Multiplex Telephony and Telegraphy by Means of Electric Waves Guided by Wires 9781019011119

30 元券

￥198; 0去看看
[预订]Multiplex Telephony and Telegraphy by Means of Electric Waves Guided by Wires 9781019011119

【预售】Digital Telephony Third Edition

300 元券

￥2015; 0去看看
【预售】Digital Telephony Third Edition

【预售】Computer Telephony Encyclopedia

300 元券

￥2073; 0去看看
【预售】Computer Telephony Encyclopedia

【预售】A Village Goes Mobile: Telephony, Me...

90 元券

￥623; 0去看看
【预售】A Village Goes Mobile: Telephony, Me...

【预售】Building Enterprise Ready Telephony Systems with

90 元券

￥626; 0去看看
【预售】Building Enterprise Ready Telephony Systems with

【预售】Cisco Avvid and IP Telephony: Design

90 元券

￥650; 0去看看
【预售】Cisco Avvid and IP Telephony: Design

正版现货直发深入理解Android：Telephony原理剖析与最佳实践杨青平著机械工业出版社9787111406761

6 元券

￥44; 0去看看
正版现货直发深入理解Android：Telephony原理剖析与最佳实践杨青平著机械工业出版社9787111406761

【预售】Computer Telephony Encyclopedia

90 元券

￥709; 0去看看
【预售】Computer Telephony Encyclopedia

【预售】VoIP Hacks: Tips & Tools for Internet Telephony

30 元券

￥242; 0去看看
【预售】VoIP Hacks: Tips & Tools for Internet Telephony

预订 Telephony: The Construction of Cable Plant: 9781018330228

30 元券

￥244; 0去看看
预订 Telephony: The Construction of Cable Plant: 9781018330228

预订 Beyond Voip Protocols - Understanding Voice Technology And Networking Techniques For Ip Telephony *网络语音协议：了

120 元券

￥1004; 0去看看
预订 Beyond Voip Protocols - Understanding Voice Technology And Networking Techniques For Ip Telephony *网络语音协议：了

【3-4周达】Handbook of SDP for Multimedia Session Negotiations : SIP and WebRTC IP Telephony [9781138484498]

207 元券

￥1864; 0去看看
【3-4周达】Handbook of SDP for Multimedia Session Negotiations : SIP and WebRTC IP Telephony [9781138484498]

【3-4周达】Computer Telephony Encyclopedia [9781138412286]

249 元券

￥2245; 0去看看
【3-4周达】Computer Telephony Encyclopedia [9781138412286]

【3-4周达】Digital Telephony Third Edition [Wiley电子电气工程] [9780471345718]

213 元券

￥1924; 0去看看
【3-4周达】Digital Telephony Third Edition [Wiley电子电气工程] [9780471345718]

【3-4周达】Handbook on Session Initiation Protocol: Networked Multimedia Communications for IP Telephony [9781498747707]

357 元券

￥3226; 0去看看
【3-4周达】Handbook on Session Initiation Protocol: Networked Multimedia Communications for IP Telephony [9781498747707]

【3-4周达】IP Telephony Interconnection Reference: Challenges, Models, and Engineering [9781439851784]

195 元券

￥1763; 0去看看
【3-4周达】IP Telephony Interconnection Reference: Challenges, Models, and Engineering [9781439851784]

【3-4周达】Digital Telephony and Network Integration [9781461357216]

177 元券

￥1601; 0去看看
【3-4周达】Digital Telephony and Network Integration [9781461357216]

预订 Mobile Video Telephony: For 3g Wireless Networks [9780071445689]

129 元券

￥1167; 0去看看
预订 Mobile Video Telephony: For 3g Wireless Networks [9780071445689]

【3-4周达】Ims Multimedia Telephony Over Cellular Systems - Voip Evolution In A Converged Telecommuni... [9780470058558]

147 元券

￥1332; 0去看看
【3-4周达】Ims Multimedia Telephony Over Cellular Systems - Voip Evolution In A Converged Telecommuni... [9780470058558]

【3-4周达】Handbook of SDP for Multimedia Session Negotiations: SIP and WebRTC IP Telephony [9780367571757]

72 元券

￥653; 0去看看
【3-4周达】Handbook of SDP for Multimedia Session Negotiations: SIP and WebRTC IP Telephony [9780367571757]

【3-4周达】Wireless Telegraphy and Telephony: An Outline for Electrical Engineers and Others [9781107629561]

54 元券

￥490; 0去看看
【3-4周达】Wireless Telegraphy and Telephony: An Outline for Electrical Engineers and Others [9781107629561]

【3-4周达】Wi-Fi Telephony: Challenges and Solutions for Voice over WLANs [9780750679718]

99 元券

￥899; 0去看看
【3-4周达】Wi-Fi Telephony: Challenges and Solutions for Voice over WLANs [9780750679718]

【3-4周达】Handbook on Session Initiation Protocol: Networked Multimedia Communications for IP Telephony [9780367574987]

69 元券

￥628; 0去看看
【3-4周达】Handbook on Session Initiation Protocol: Networked Multimedia Communications for IP Telephony [9780367574987]

【3-4周达】Networks: Internet - Telephony - Multimedia [9783642624537]

183 元券

￥1666; 0去看看
【3-4周达】Networks: Internet - Telephony - Multimedia [9783642624537]

预订 FreePBX 2.5 Powerful Telephony Solutions [9781847194725]

57 元券

￥519; 0去看看
预订 FreePBX 2.5 Powerful Telephony Solutions [9781847194725]

【3-4周达】Enterprise Networks and Telephony : From Technology to Business Strategy [9781447115663]

63 元券

￥574; 0去看看
【3-4周达】Enterprise Networks and Telephony : From Technology to Business Strategy [9781447115663]

预订 Mobile Telephony Dangerous for both Adult and Children [9783659205422]

69 元券

￥629; 0去看看
预订 Mobile Telephony Dangerous for both Adult and Children [9783659205422]

【3-4周达】Asterisk: The Definitive Guide: Open Source Telephony for the Enterprise [9781492031604]

69 元券

￥629; 0去看看
【3-4周达】Asterisk: The Definitive Guide: Open Source Telephony for the Enterprise [9781492031604]

预订 IP Telephony Over IUG Network [9783844394634]

69 元券

￥629; 0去看看
预订 IP Telephony Over IUG Network [9783844394634]

【3-4周达】Ip Telephony - Deploying Voip Protocols And Ims Infrastructure 2E [Wiley电子电气工程] [9780470665848]

132 元券

￥1204; 0去看看
【3-4周达】Ip Telephony - Deploying Voip Protocols And Ims Infrastructure 2E [Wiley电子电气工程] [9780470665848]

【3-4周达】A Village Goes Mobile: Telephony, Mediation, and Social Change in Rural India [9780190630270]

162 元券

￥1478; 0去看看
【3-4周达】A Village Goes Mobile: Telephony, Mediation, and Social Change in Rural India [9780190630270]

【3-4周达】Computer Telephony Encyclopedia [9781578200450]

84 元券

￥767; 0去看看
【3-4周达】Computer Telephony Encyclopedia [9781578200450]

【3-4周达】Telephony, the Internet, and the Media : Selected Papers From the 1997 Telecommunications ... [9780805831528]

75 元券

￥685; 0去看看
【3-4周达】Telephony, the Internet, and the Media : Selected Papers From the 1997 Telecommunications ... [9780805831528]

【3-4周达】Telephony, the Internet, and the Media: Selected Papers From the 1997 Telecommunications P... [9780805831511]

207 元券

￥1891; 0去看看
【3-4周达】Telephony, the Internet, and the Media: Selected Papers From the 1997 Telecommunications P... [9780805831511]

【3-4周达】Digital Telephony and Network Integration [9780412098819]

177 元券

￥1621; 0去看看
【3-4周达】Digital Telephony and Network Integration [9780412098819]

预订 Building Telephony Systems with OpenSIPS - Second Edition [9781785280610]

63 元券

￥577; 0去看看
预订 Building Telephony Systems with OpenSIPS - Second Edition [9781785280610]

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