
AudioCodes Mediant E-SBC 50 Document #: LTRT-40821
Microsoft Lync and XO Technology SIP Trunk
The procedure below describes how to configure an Allowed Coders Group to ensure that
voice sent to the XO Communications SIP Trunk uses the G.729 coder whenever possible.
Note that this Allowed Coders Group ID was assigned to the IP Profile belonging to the XO
Communications SIP Trunk in the previous step (see Section 4.6 on page 44).
To set a preferred coder for the XO Communications SIP Trunk:
1. Open the Allowed Coders Group page (Configuration tab > VoIP menu > SBC >
Allowed Coders Group).
2. Configure an Allowed Coder as follows:
Parameter Value
Allowed Coders Group ID
2
Coder Name
G.729
Figure 4-18: Configuring Allowed Coders Group for XO Communications SIP Trunk
3. Open the General Settings page (Configuration tab > VoIP menu > SBC > General
Settings).
Figure 4-19: SBC Preferences Mode
4. From the 'SBC Preferences Mode' drop-down list, select Include Extensions.
5. Click Submit.
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