Cisco Voice over IP (CVOICE)

Commonly POTS or VoIP, required for inbound and outbound call legs. Outbound Core Elements: - Destination pattern (digit matching) - Port (P...

Example FXS voice port configuration for UK phone handset: voice-port 0/2/0 description VP-FXS | Mail Room | +441224987654 signal loop-st...

Codecs used to compress and encode voice transmissions are not effective when the stream is a fax transmission.  As the stream is digitised ...

CCS uses a common channel for all signalling.  The signalling protocols that can be used with CCS are: ISDN - Q931  - BRI (2B+D) and PR...

Waveform algorithms: - Sample at 8000 samples/sec - Use prediction techniques - G.711/G.726 Source algorithms: - Vocoders/voice coders...

Analogue to digital conversion uses the following steps: 1. Sample (snapshot) the analog signal at high frequency intervals 2. Match the ...

Two types of echo exist, acoustic and electrical: Acoustic when the received voice is caught by the microphone and sent back to the reciev...