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1. 1st Coder : Should be G711Ulaw64k with 20ms samples.

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SIP Definition / General

1. Enable out of Band DTMF: No

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1. Enable Proxy: Yes
2. Proxy Name: The fully qualified DNS name of sipX (typically sipx.domain.com).
3. Proxy IP Address: The IP address of the sipX server.
4. Enable Registration: No, the Gateway should not register (only phones register).
5. Always use proxy: No, if this is set to yes, Record Route is not used.

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Coder Name

1. 1st Coder: Populate the fields with the coders you want to use. Always include G.711u as this is the preferred codec for the sipX Media Server.

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The phone number is the ANI for incoming PSTN or PBX calls, which do not have an ANI.<center>

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Manipulation Tables
The Number Manipulation tables are used for incoming and outgoing calls. These tables are used to modify the destination and source telephone number so that calls can be routed correctly.<center>

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The Number Manipulation tables are used for incoming and outgoing calls. These tables are used to modify the destination and source telephone number so that calls can be routed correctly.

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Select the IP to Tel Routing Table and add a row for each proxy in your configuration (you will only have one unless you are running a High Availability system with redundant proxy servers). Each row has just <tt>*</tt> for the number prefix values, the IP address of a proxy, and the default tel profile number:<center>

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Select the menu Advanced Parameters and go to the General Parameters page.

Set IP Security to Enable.<center>

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IP to Trunk Routing Table

The IP to Trunk Routing Table is used to route incoming IP calls to groups of E1/T1 B-channels called trunk groups. If the destination phone number of an incoming IP call matches one of the prefixes entered, the call is assigned to the trunk group associated with this prefix. In this example, all incoming IP calls will be routed out Trunk Group 1.

Trunk Group Settings

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The Trunk Group Settings Table is used to determine the method in which new calls are assigned to B-channels within each trunk group.

Network Settings

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1. IP Address: IP address of the AudioCodes gateway.

Channel Settings<center>

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You should not need to modify any channel settings for sipX interoperability.

Trunk Settings<center>

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The Trunk Settings are utilized to setup the Trunk, including the Telephony protocol type. This should be configured so the interface operates with the PSTN or PBX interface to which it is connected.

TDM Bus Settings<center>

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1. PCM Law Select: Select Mulaw; this must be MuLaw for T1.
2. TDM Bus Clock Source: Select Network; this is the clock source.

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