Cisco 7911G Unified IP Phone

Cisco Unified 7911G IP phone is meant for office workers, retail shops, workshops, and any other workers generating small to medium phone call traffic.

This IP phone is a base model improved with few modifications and has following functional characteristics: Support for power supply over Ethernet IEEE802.3af and Cisco power supply standard Additional memory volume to support advanced features and applications. 4 soft keys provide users of CP-7911G with access to various features and functionality, while the graphic display combines intuitive controls, information on service calls and XML. Complete line protection Cisco Unified CallManager User interface, similar to other IP phone models of Cisco Unified family

Providers in database: 6433

Echo cancellation module VPMADT032

VPMADT032 echo cancellation module is meant to be used with the Digium IP telephony boards; it provides echo cancellation for configurable long "tail" of up to 128 ms (1024 samples) simultaneously for all ports of the board. All IP-PBX Asterisk servers, connected to the telephone network (PSTN) have one common problem, which is "hybrid echo" - echo obtained due to the difference in the load-wire and four-wire telephone circuits. Echo appears as a distorted reflection and a detainee of the caller's voice, who is subscribed to IP-PBX Asterisk while talking to PSTN subscribers.

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