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[预订]The Thermionic Valve and Its Developments in Radiotelegraphy and Telephony 9781015773448
[预订]Telegraph And Telephone Age: Telegraphy-Telephony-Radio, (Jan. - Dec., 1917) 9781013585845
【预售】A Village Goes Mobile: Telephony, Me...
【预售】Enterprise Networks and Telephony: From Technology
【预售】Asterisk: The Definitive Guide: Open Source Telephony for the Enterprise
[预订]Multiplex Telephony and Telegraphy by Means of Electric Waves Guided by Wires 9781019006122
【预售】Building Enterprise Ready Telephony Systems with
【预售】Wi-Fi Telephony: Challenges and Solutions for Voice
Android Telephony原理解析与开发指南
【预售 按需印刷】Wireless Telegraphy And Wireless Telephony
【预售】Mobile Video Telephony: For 3g Wirel...
【预售】VoIP Hacks: Tips & Tools for Internet Telephony
[预订]Multiplex Telephony and Telegraphy by Means of Electric Waves Guided by Wires 9781019011119
预售 按需印刷PSTN-IP Telephony Gateway for Ensuring QoS in Heterogeneous Networks
【预售】Computer Telephony Encyclopedia
【预售 按需印刷】Building Telephony Systems with Opensips 1.6
【预售 按需印刷】Building Enterprise Ready Telephony Systems with sipXecs 4.0
【预售】Cisco Avvid and IP Telephony: Design
预订 Telephony, the Internet, and the Media
【预售 按需印刷】Building Telephony Systems with OpenSIPS - Second Edition
【预售 按需印刷】Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony etc. etc.
【预售 按需印刷】FreePBX 2.5 Powerful Telephony Solutions
预订 按需印刷 Telephony the Internet and the Media
【预售】Wireless Telegraphy and Telephony: An
【预售】Freepbx 2.5 Powerful Telephony Solutions
【预售】Pbx Systems for IP Telephony, Migrating Enterprise
【预订】Ims Multimedia Telephony Over Cellular Systems - Voip Evolution in a Converged Telecommunication World
【预售 按需印刷】Wireless Telegraphy And Telephony (1906)
预订Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
【预订】Ip Telephony - Deploying Voip Protocols and Ims Infrastructure 2E
【预售】Wireless Telephony, in Theory and Practice
【预售】Digital Telephony and Network Integrat
按需印刷FreePBX 2.5 Powerful Telephony Solutions[9781847194725]
【预售 按需印刷】IP Telephony Over IUG Network
【预订】Networks: Internet . Telephony . Mul...
【预订】Computer Telephony Integration, Second Edition
按需印刷PSTN-IP Telephony Gateway for Ensuring QoS in Heterogeneous Networks[9783659178825]
按需印刷Building Telephony Systems with OpenSIPS - Second Edition[9781785280610]
深入理解Android Telephony原理剖析与 佳实践
【预售】IP Telephony Interconnection Reference: Challenges
【预售】Digital Telephony Third Edition
按需印刷Mobile Telephony Dangerous for both Adult and Children[9783659205422]
【预售 按需印刷】Wireless Telephony
【4周达】FreePBX 2.5 Powerful Telephony Solutions [9781847194725]
预订Asterisk: The Definitive Guide:Open Source Telephony for the Enterprise
正版 Android Telephony原理解析与开发指南 搭建Android源代码编译调试环境 通话流程 Android系统工程师Android安卓定制开发书
【全新正版】 ndroid Telephony原理解析与开发指南 9787115489159
【4周达】Design and Cryptanalysis of ZUC : A Stream Cipher in Mobile Telephony [9789813348813]
【4周达】Microsoft Lync 2013 Unified Communications: From Telephony to Real-Time Communication in the... [9781849685061]
【4周达】A Village Goes Mobile: Telephony, Mediation, and Social Change in Rural India [9780190630287]
【4周达】Enterprise Networks and Telephony : From Technology to Business Strategy [9781447115663]
预订 Building Enterprise Ready Telephony Systems with sipXecs 4.0 [9781847196804]
预订 Building Telephony Systems with OpenSER: A Step-by-Step Guide to Building a High-Performance Tel... [9781847193735]
按需印刷IP Telephony Over IUG Network[9783844394634]
【4周达】Building Telephony Systems with OpenSIPS - Second Edition [9781785280610]
【4周达】Mobile Telephony Dangerous for both Adult and Children [9783659205422]
【4周达】Wireless Telegraphy and Telephony: An Outline for Electrical Engineers and Others [9781107629561]
【4周达】Asterisk: The Definitive Guide: Open Source Telephony for the Enterprise [9781492031604]
【4周达】PSTN-IP Telephony Gateway for Ensuring QoS in Heterogeneous Networks [9783659178825]
【4周达】Handbook of SDP for Multimedia Session Negotiations: SIP and WebRTC IP Telephony [9780367571757]
【4周达】Asterisk Cookbook: Solutions to Everyday Telephony Problems [9781449303822]
【4周达】'Glocalization' of Mobile Telephony in West and Central Africa: Consumer Appropriation and C... [9789956550395]
按需印刷Wireless Telegraphy And Telephony (1906)[9781437365504]
【4周达】IP Telephony Over IUG Network [9783844394634]
按需印刷Telephony Without Wires[9780548506820]
【4周达】Voip Hacks: Tips & Tools for Internet Telephony [9780596101336]
预订 Handbook on Session Initiation Protocol: Networked Multimedia Communications for IP Telephony [9780367574987]
【4周达】Telephony, the Internet, and the Media : Selected Papers From the 1997 Telecommunications Po... [9780805831528]
【4周达】Voip And Unified Communications: Internet Telephony And The Future Voice Network [Wiley电子... [9781118019214]
【4周达】Pbx Systems for IP Telephony, Migrating Enterprise Communications [9780071375689]
【4周达】Computer Telephony Encyclopedia [9781578200450]
【4周达】Secure Serial Port Communications and Telephony Dialing Systems [9786202055871]
Ip Telephony - Deploying Voip Protocols And Ims Infrastructure 2E [Wiley电子电气工程] [9780470665848]
【4周达】Wi-Fi Telephony: Challenges and Solutions for Voice over WLANs [9780750679718]
【4周达】Cisco Avvid and IP Telephony Design and Implementation [9781928994831]
【4周达】Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks [9783319378756]
【4周达】Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks [9783319021010]
【4周达】Mobile Video Telephony: For 3g Wireless Networks [9780071445689]
【4周达】Ims Multimedia Telephony Over Cellular Systems - Voip Evolution In A Converged Telecommunica... [9780470058558]
【4周达】Converged Communications - Evolution from Telephony to 5G Mobile Internet [9781119867500]
【4周达】A Village Goes Mobile: Telephony, Mediation, and Social Change in Rural India [9780190630270]
【4周达】Digital Telephony and Network Integration [9781461357216]
【4周达】Digital Telephony and Network Integration [9780412098819]
【4周达】Networks: Internet - Telephony - Multimedia [9783642624537]
【4周达】IP Telephony Interconnection Reference: Challenges, Models, and Engineering [9781439851784]
【4周达】Telephony, the Internet, and the Media: Selected Papers From the 1997 Telecommunications Pol... [9780805831511]
现货 IP 电话:部署 VoIP 协议和 IMS 基础设施IP Telephony:Deploying VoIP Protocols and IMS Infras 9780470665848
【4周达】Handbook of SDP for Multimedia Session Negotiations : SIP and WebRTC IP Telephony [9781138484498]
【4周达】Digital Telephony Third Edition [Wiley电子电气工程] [9780471345718]
【4周达】Computer Telephony Encyclopedia [9781138412286]
IP PBX with 2 FXO All-in-One telephony system supports inter
【4周达】Handbook on Session Initiation Protocol: Networked Multimedia Communications for IP Telephony [9781498747707]
NAU8812RG『IC CODEC VOICE TELEPHONY 28SSOP』 现货
NAU8812RG 芯片「IC CODEC VOICE TELEPHONY 28SSOP」
【 全新原装现货 】 CS42L73-CRZR IC CODEC AUDIO/TELEPHONY 65