Cisco IP Communicator
Encyclopedia
Cisco IP Communicator is a VoIP softphone
software application. It can register with a Cisco Unified Communications Manager or Cisco Unified Communications Manager Express using either SIP
or Cisco's proprietary Skinny Client Control Protocol
.
It uses audio codecs G.722
wideband, G.711
a, G.711ų, iLBC
, iSAC, G.729
a, and G.729ab.
Softphone
A softphone is a software program for making telephone calls over the Internet using a general purpose computer, rather than using dedicated hardware. Often a softphone is designed to behave like a traditional telephone, sometimes appearing as an image of a phone, with a display panel and buttons...
software application. It can register with a Cisco Unified Communications Manager or Cisco Unified Communications Manager Express using either SIP
Session Initiation Protocol
The Session Initiation Protocol is an IETF-defined signaling protocol widely used for controlling communication sessions such as voice and video calls over Internet Protocol . The protocol can be used for creating, modifying and terminating two-party or multiparty sessions...
or Cisco's proprietary Skinny Client Control Protocol
Skinny Client Control Protocol
The Skinny Call Control Protocol is a proprietary network terminal control protocol originally developed by Selsius Systems....
.
It uses audio codecs G.722
G.722
G.722 is a ITU-T standard 7 kHz wideband speech codec operating at 48, 56 and 64 kbit/s. It was approved by ITU-T in November 1988. Technology of the codec is based on sub-band ADPCM ....
wideband, G.711
G.711
G.711 is an ITU-T standard for audio companding. It is primarily used in telephony. The standard was released for usage in 1972. Its formal name is Pulse code modulation of voice frequencies. It is required standard in many technologies, for example in H.320 and H.323 specifications. It can also...
a, G.711ų, iLBC
ILBC
Internet Low Bitrate Codec is an open source royalty-free narrowband speech codec, developed by Global IP Solutions formerly Global IP Sound . It was formerly licensed as a freeware with limited commercial use, but since 2011 it is available under an open source license as a part of the open...
, iSAC, G.729
G.729
G.729 is an audio data compression algorithm for voice that compresses digital voice in packets of 10 milliseconds duration. It is officially described as Coding of speech at 8 kbit/s using conjugate-structure algebraic code-excited linear prediction .Because of its low bandwidth requirements,...
a, and G.729ab.
See also
- Comparison of VoIP softwareComparison of VoIP softwareVoIP software is used to conduct telephone-like voice conversations across Internet Protocol based networks. VoIP stands for "Voice over IP". For residential markets, VoIP phone service is often cheaper than traditional public switched telephone network service and can remove geographic...
- Cisco Systems#Partial list of software products
- Cisco Unified Communications Manager