Grandstream HandyTone 502 – VoIP phone adapter – 2 ports – Ethernet, Fast Ethernet 2 FXS ports (RJ11) w/up to 2 SIP account profiles Dual10/100 Mpbs ports (RJ45) w/integrated router Supports Voice Codecs: G.711(a/u-law), G.723.1, G.729A/B, G.729E, G.726-40/32/24/16 and iLBC T.38 Fax, SIP over TCP/TLS Web management for easy configuration and installation The HT502 is […]

Cisco Voice over IP (CVOICE) (Authorized Self-Study Guide) (3rd Edition) ISBN13: 9781587055546 Condition: New Notes: BRAND NEW FROM PUBLISHER! 100% Satisfaction Guarantee. Tracking provided on most orders. Buy with Confidence! Millions of books sold! Authorized Self-Study Guide Cisco Voice over IP (CVOICE) Third Edition   Foundation learning for CVOICE exam 642-436   Kevin Wallace, CCIE […]

VoIP Handbook: Applications, Technologies, Reliability, and Security The number of worldwide VoIP customers is well over 38 million. Thanks to the popularity of inexpensive, high-quality services, it’s projected to increase to nearly 250 million within the next three years. The VoIP Handbook: Applications, Technologies, Reliability, and Security captures the state of the art in VoIP technology and serves […]

USB VOIP Skype Phone A full featured USB phone Completely compatible with VTGO-PC It allows you to install as second line in your home without having to install an actual landline Saves your money in terms of long distance phone call charges Made specifically for Mac users The VoIP Phone – USB Skype Cyberphone W […]

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VoIP Performance Management and Optimization VoIP Performance Management and Optimization A KPI-based approach to managing and optimizing VoIP networks   IP Communications   Adeel Ahmed, CCIE® No. 4574 Habib Madani Talal Siddiqui, CCIE No. 4280   VoIP Performance Management and Optimization is the first comprehensive, expert guide to managing, monitoring, troubleshooting, and optimizing large VoIP […]

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VoIP/Skype USB Phone with LCD Display (Black) VoIP/Skype USB Phone with LCD Display General Features: Black design USB interface (USB 1.1 and 2.0 compatible) LCD display PC to PC and PC to phone operation Echo cancellation Noise reduction Duplex communication Caller ID function Ring style selectable No sound card and external power required Plug and […]

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