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On-net SIP calling question.

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Berksta

MIS
May 30, 2012
5
AU
Hi,

In need of some advice...

We're trying to achieve seamless on-net calling - the calling between sites is functional by dialling "site code+extn". Caller ID arrives at destination with 4 digit extension of the calling party:

3311 dials 891442
1442 receives call from 3311 - display is 3311. However, we need it to display the site code as well as extension 873311 (so, extension plus appropriate site code). Conversely, if 1442 calls 873311, we'd need it to display as 891442.

Is there any way, without dial plan manipulation, this is achieveable? We have tried modifying the public uknown numbering, changing AAR and UDP to some degree as well. It seems straight forward - maybe there's a simple solution that we've missed.

Basic architecture of system:
Head office - CM v6 S8800 / G450 / Session Manager (centralised)
Remote offices - Stand-alone CM v6 S8300D / G450 (not running SES)

All on-net calls route via session manager.

Let me know if there's any further information required.

Cheers!
 
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