Codecs on SIP phones
| Yealink T31P | Grandstream GRP-2602P | Cisco SPA-303 | Linphone | |
| Versions | FW 124.86.0.40 HW 123.1.1.0.2.0.0 |
|
Software Version: 7.4.9c
Hardware Version: 1.0.1 |
Android 9+: v6.2.3 (7 Jul 2026) |
| in order of priority |
Opus G722 PCMA PCMU
legacy:
G729AB G729 G726/40 kbps G726/32 kbps G726/24 kbps G726/16 kbps iLBC/15.2 kbps iLBC/13.3 kbps G723.1/63 kbps G723.1/53 kbps
|
Opus G722 PCMA PCMU
legacy:
G.729A/B
G.726-40 kbps G.726-32 kbps G.726-24 kbps G.726-16 kbps iLBC
G.723.1 kbps |
G722 G729a G711u G711a
legacy:
G726-40 G726-32 G726-24 G726-16
|
Opus/48 kHz Speex/16 kHz PCMU/8 kHz PCMA/8 kHz GSM/8 kHz G722/8 kHz iLBC/8 kHz G729/8 kHz iSAC/16 kHz speex/32kHz BV16/8 kHz L16/44.1 kHz
(priority order can not be defined in the UI)
! not supported: G.726 (legacy) G.723 (legacy) |