
Connecting Microsoft Lync 2013 to a SIP Trunk
AudioCodes Mediant E-SBC 54 Document #: LTRT-54004
The step below adds an Allowed Coders Group to ensure that voice sent to the SIP Trunk
uses the G.729 coder whenever possible.
Note that this Allowed Coders Group ID (and its preference) was assigned to the IP Profile
belonging to the SIP Trunk in the previous step (see Section 4.6 on page 49).
To set a preferred coder for the SIP Trunk:
1. Open the Allowed Coders Group page (Configuration tab > VoIP > SBC > Allowed
Coders Group).
2. From the ‘Allowed Coders Group ID’ drop-down list, select 2.
3. From the 'Coder Name' drop-down list, select G.729.
Figure 4-18: Allowed Coders Group for SIP Trunk
4. Click Submit.
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