Calls from SIP/ISDN gateway to SIP phones

[wiener]

1. Brekeke Product Name and version:Brekeke SIP server

2. Java version:

3. OS type and the version:

4. UA (phone), gateway or other hardware/software involved:

5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/networkpatterns.html :

6. Your problem:

I have a SIP to ISDN gateway, a BREKEKE proxy and some SIP phones. When I want to make a call from a SIP phone to an ISDN extension, there is no problem. I made a dial plan rule in the proxy that routs all calls for users that start with "9" to the gateway, which passes them to the ISDN side with thw given phone number in the SETUP message.
The problem is with calls that cone from the ISDN. The proxy refuses all those INVITE requests, because the "From", which is the ISDN phone number, is not a registered user in the proxy (even if I register the gateway itself).
Is there a way to go around this problem?
Many thanks in advance.

[redroof]

>> because the "From", which is the ISDN phone number, is not a
>> registered user in the proxy

Brekeke SIP Server doesn't reject an incoming call even if From-URI is not registered.


Do you know which SIP error response code is returned from Brekeke SIP Server?

Are you using Authentication for INVITE in the SIP Server?