Voice codecs

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Revision as of 09:27, 22 July 2011 by Cbilodeau (Talk | contribs)

TelcoBridges products support the following voice codecs.

Wireless codecs ¹
- AMR - Supported packet durations: 20,40,60 and 80 msec
- GSM-FR - Supported packet durations: 20 and 30 msec
- GSM-EFR - Supported packet durations: 20,40 and 60 msec
- EVRC - Supported packet durations: 20,40 and 60 msec
- QCELP - Supported packet durations: 20,40 and 60 msec
- G.722.2 (AMR-WB) - Supported packet durations: 20,40,60 and80 msec

The following density can be achieve when codec mix is dynamically negotiated.

Type of VoIP mezzanine	Universal codecs					Other codecs			Wireless codecs¹
Type of VoIP mezzanine	G.711	G.723.1	G.726	G.729ab	T.38	G.728	G.729eg	iLBC	AMR	AMR-WB	GSM-FR/GSM-EFR	EVRC/QCELP
TM-VOIP-1	341	127	169	154	127	58	64	75	91	59	107	95
TM-VOIP-2	682	254	338	308	254	116	128	150	182	118	214	190
TM-VOIP-3	1023	381	507	462	381	174	192	225	273	177	321	285
TM-VOIP-4	1364	508	676	616	508	232	256	300	364	236	428	380

The following density can be achieve when codec mix is predefined.

Type of VoIP mezzanine	Universal codecs					Other codecs			Wireless codecs¹
Type of VoIP mezzanine	G.711	G.723.1	G.726	G.729ab	T.38	G.728	G.729eg	iLBC	AMR	AMR-WB	GSM-FR/GSM-EFR	EVRC/QCELP
TM-VOIP-1	404	128	200	168	128	66	72	84	102	60	120	96
TM-VOIP-2	808	256	400	336	256	132	144	168	204	120	240	192
TM-VOIP-3	1212	384	600	504	384	198	216	252	306	180	360	288
TM-VOIP-4	1616	512	800	672	512	264	288	336	408	240	480	384

[1] May require additional licenses

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