Outbound SIP-trunks problems

[cmksgmbh]

Dear,

we are running a OXO R10.3 in a mixed enviroment (T0, UA, SIP-Trunks).

As SIP-trunks we are using Geils (nyagw.voipbackbone.net) and easybell (sip.easybell.de).

When a SIP-client initiates a outbound call with authentication the way is always the same:

client -> host: INVITE number
host -> client: 100 trying
host -> client: 401 unauthorized + login token
client -> host: ACK

client -> host: INVITE number + token + logindata
host -> client: 100 trying
host -> client: 100 ringing
.
.
.

If there is a SIP-proxy involved it is nearly the same:

client -> host: INVITE number
host -> client: 100 trying
host -> client: 407 Proxy Authentication Required + login token
client -> host: ACK

client -> host: INVITE number + token + logindata
host -> client: 100 trying
host -> client: 100 ringing
.
.
.

The second example works well on the OXO - it is i.e. the easybell way. The first example works not on the OXO. The OXO will not do the second INVITE with the credentials.

Do have anybody experience with such strange behavior?

I am appreciative for and hint / idea.

Regards

[cavagnaro]

Because the SIP host should ask that credentials are needed and then OXO sends them. As them so do that.

[cmksgmbh]

Yes, I know that. But the OXO dont send them in the first case.

[cavagnaro]

http://www.voip-info.org/wiki/view/SIP+Authentication

Read more about SIP Authentication.