Inter-Tel AXXESS Manual page 642

System Features
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INTER-TEL AXXESS
Q. IP DEVICES AND LOCAL LOOP SUPPORT
10.199System versions 7.0 and later support IP-based solutions for providing local Public
Switched Telephone Network (PSTN) connectivity using the IPRC card and a SIP Gateway.
The SIP gateway must have Disconnect Supervision enabled so that it can detect when the
PSTN disconnects the call. The SIP gateway then sends a BYE command and terminates
the call. This applies to both the Audiocodes and Quintum SIP Gateways.
Session Initiation Protocol (SIP) Gateway
10.200The system supports SIP (Session Initiated Protocol) trunks to reach the CO. SIP trunks
allow the system to communicate with the CO via SIP-enabled gateways. As the SIP protocol
becomes more and more popular, it is important to be able to communicate to SIP gateways in
the IP-centric world.
10.201The following new SIP gateways are available through the Inter-Tel CommSource
division:
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•
10.202These gateways replace the AudioCodes MP-104 SIP Gateway that has gone end-of-
life in October 2006. Both gateways support analog Foreign eXchange Office (FXO) ports.
The setup procedure is different for each device; the MP-114 gateway uses a Web interface
called the AudioCodes Web administrator, while the AFT 400 gateway uses a Configuration
Manager program and a Command Line Interface (CLI). Existing Axxess systems must
upgrade to v10.0 or later to support the gateways. For more information, refer to the Inter-Tel
Axxess/5000 Quintum SIP Gateway Installation Manual (document part no. 835.3123) or the
Inter-Tel Axxess/5000 AudioCodes MP-114 SIP Gateway Installation Manual (document part
no. 835.3202).
10.203SIP trunks support the following functionality:
•
•
•
•
•
•
10.204SIP trunks require:
•
•
NOTE:
tures.
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MANUAL VERSION 11.0 – May 2008
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Quintum AFT 400 SIP gateway
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AudioCodes MP-114 SIP gateway
They are transparent to the system user because SIP trunks work like any other CO
trunk in the system.
They support transferring trunks, putting trunks on hold, and connecting trunks to con-
ferences, similar to other CO trunks in the system.
They support making and receiving calls by any endpoint.
They support peer-to-peer audio by IP endpoints.
They reside in CO trunk groups just like other trunks so that SIP trunk calls can be
routed using Automatic Route Selection (ARS).
They support 911 calls (like MGCP trunks).
An IPRC with v8.1.x or later firmware.
A SIP trunk software license (part number 840.0267).
SIP trunks do not support the Direct Inward System Access (DISA) or speed dial fea-
CAUTION
IP Devices and Local Loop Support
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