This post serves as a place to collect information to deliver Multicast audio on IP Phones. The testing is done on Yealink phones however we will be doing required testing on Cisco/Linksys SPA series phones as well.
To change the format and codecs of the audio, I’m using the open source tools – Audacity.
The codec and audio formatting that work is:
Codec PCM S16 LE (s16l)
Sample rate: 8000 Hz
Bit per sample 16