Audio codecs – ATL Telecom IP-3072 PoE Smart Office IP Telephone User Manual
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MOCET IP3072 Smart Office IP Desk Phone Administrator Guide
(RTP) streams of connected calls. The phone can encode the DTMF tones using the
active voice codec or using RFC2833-compatible encoding. The DTMF parameters in the
following illustration will help you set up this feature. For the DTMF Type selection, you
may need to consult your SIP server partner to find out which is the suitable one.
Audio Codecs
The following table details the audio codec support for IP3072 phone.
Audio Codec
Raw Bit Rate
Default Payload Size
G.711 u-law
64 Kbps
20 ms
G.711 A-law
64 Kbps
20 ms
G.722
64 Kbps
20 ms
G.723.1*
5.3/6.3 Kbps
30 ms
G.726
16/24/32/40 Kbps
20 ms
G.729A/AB*
8 Kbps
20 ms
LINPCM256
256Kbps N/A
Note: G.723.1 and G.729A/AB are disabled by default. If you need to use these two
codecs, please contact us to obtain further information.
You can find Codec Settings in the Web Configuration Interface, as shown in the following
illustration.