Voice codecs

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Revision as of 15:27, 31 March 2014 by Allyntree (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

Codec denisty is comprised of two modes:

The following densities are achieved when a 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 densities are achieved when a 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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