A Cisco collaboration architect is evaluating a list of codecs to use in a voice infrastructure.
Which three facts are associated with iSAC and should be considered in the decision? (Choose three)
Click on the arrows to vote for the correct answer
A. B. C. D. E. F.ACE.
iSAC (internet Speech Audio Codec) is a high-quality, low-bitrate voice codec used in Cisco collaboration infrastructure. Here are the three important facts associated with iSAC that should be considered in the decision:
The codec has better quality with less bandwidth for sideband applications: iSAC is a high-quality codec that provides better voice quality than other codecs at lower bit rates. It is well-suited for use in sideband applications like voice messaging, conferencing, and transcoding.
The codec will adjust its bandwidth consumption to the network conditions: iSAC is a dynamic codec that can adapt its bandwidth consumption to the network conditions. It can adjust its bit rate to match the available bandwidth, making it an excellent choice for voice over IP (VoIP) networks where bandwidth is variable.
The codec will not be supported in TDM voice gateways: iSAC is a software-based codec that is not supported on TDM (Time Division Multiplexing) voice gateways. TDM gateways use hardware-based codecs that are optimized for TDM networks.
Based on these facts, options B, D, E, and F are incorrect. Option B is incorrect because iSAC is supported in VoIP gateways but not in TDM gateways. Option D is incorrect because iSAC is supported by SIP and other protocols, but not by H.323 and MGCP. Option E is incorrect because iSAC supports both low and high complexity. Option F is incorrect because iSAC is supported by SCCP and other protocols, but not on DSPFARMS.
Therefore, the correct answers are A, C, and a third option not listed in the question.