Audio Features
HD voice: HD handset, HD speaker
Codecs: G.722, G.711(A/碌), G.723, G.729AB, G.726, iLBC
DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO
Yealink wall mount bracket for the T27P and T29GWM
Product Tags
Use spaces to separate tags. Use single quotes (') for phrases.