
Configuration Note 4. Configuring AudioCodes E-SBC
Microsoft Lync and XO Technology SIP Trunk 49 AudioCodes Mediant E-SBC
4.7 Step 7: Configure Coders
This step describes how to configure coders (termed Coder Group). As Lync Server 2013
supports the G.711 coder while the network connection to XO Communications SIP Trunk
may restrict operation with a lower bandwidth coder such as G.729, you need to add a
Coder Group with the G.729 coder for the XO Communications SIP Trunk.
Note that the Coder Group ID for this entity was assigned to its corresponding IP Profile in
the previous step (see Section 4.6 on page 44).
To configure coders:
1. Open the Coder Group Settings (Configuration tab > VoIP menu > Coders and
Profiles > Coders Group Settings).
2. Configure a Coder Group for Lync Server 2013:
Parameter Value
Coder Group ID
1
Coder Name
G.711 U-law
G.711 A-law
Silence Suppression
Enable (for both coders)
Figure 4-16: Configuring Coder Group for Lync Server 2013
3. Configure a Coder Group for XO Communications SIP Trunk:
Parameter Value
Coder Group ID
2
Coder Name
G.729
Figure 4-17: Configuring Coder Group for XO Communications SIP Trunk
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