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Unread 03-03-2007, 02:13 PM   #1
Join Date: Mar 2006
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v164 is a jewel in the roughv164 is a jewel in the rough
Default provider details - remote domain needed

When adding a new provider in the advanced "Provider Details" page,

there is space for the "From Domain", but nowhere to specify the "remote domain".

My Japanese VSP requires the request URI to contain the Japanese-domestic formatted phone number (I can take care of that with VoXaLot dial plans), as well as a VSP-specific "domain". This "domain" is private to the VSP; it cannot be looked up in public DNS (either by A records or SRV records).

eg, the VSP's SIP server is, but they require the request URI to be in the form:


and the SIP INVITE message sent to

Is there anyway I can get VoXaLot to use the required "remote domain" when sending calls to this provider?

RFC 3261 mentions the ";maddr=..." parameter, which can suffix a SIP URI to indicate a server that must be traversed. Could I somehow specify that suffix in a dial plan rule?
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Unread 03-21-2007, 01:34 PM   #2
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v164 is a jewel in the roughv164 is a jewel in the rough
Default remote domain

Here are the specific details:

Fusion's SIP proxy server and register server is ( )

For outgoing calls, the SIP INVITE packet needs to be sent to their SIP proxy server in this format (for a call to a Tokyo (03)xxxx xxxx number):

Via: SIP/2.0/UDP;rport;branch=z9h...D123
From: 050xxxxxxxx <>;tag=802812810
To: <>
Contact: <>
Call-ID: DD1B....4C66@
CSeq: 64733 INVITE
Max-Forwards: 70
Content-Type: application/sdp
User-Agent: X-PRO build 1101
Content-Length: 195
Note that the domain in the "From: " header is the FQDN of the SIP proxy server, however the domain in the request URI is It is possible to enter this with a softphone, however I can't see any way to make such a call through Voxalot.

There is nowhere to enter a "remote domain" in the Provider Details page.

In creating the request URI, VoXaLot dial plans would take care of creating the part to the left of the "@", but I need some way to specify the part to the right of the "@".

Currently, VoXaLot would send a call to Fusion like this:

which doesn't work.
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