External ring tone with SIP Trunk only works with anonymous calls?!

[tzepf]

Hey folks,

i have my OXO on R10 working with SIP Trunk. Before we have changed to SIP we used ISDN and the internal and external ring tones were correct. Now i have the internal ring tone for every call with a number in the Display, only when a caller uses CLIR and the stars are displayed the external ring tones works.

Any idea how to configure this thing right? I already tested some memory addresses like VipPuNua and SimulIpAlt with no success (the only result of changing these values was a non working SIP Trunk...)

Thanks,
Tobias

[fe80]

The checkbox for "public trunk" is set on OMC: external lines / list of accesses / details?
Definition of "SIP public Numbering" in ARS is correct? Hint: review the values in "calling prefix (incoming)" and "called prefix (incoming)".

[tzepf]

Hi fe80,

thanks for getting back to me. The checkbox public trunk is set. I've seen different prefixes in different manuals, and i think my values are working right now but not 100% correct. How is it possible to find the correct values without trying every possible combination?

Thanks, Tobias

[fe80]

Hi Tobias,
the correct prefix depends on the format your SIP provider delivers calls to you. Doing traces is the best way to find out the correct values. Assume your SIP provider sends the following request line for incoming public call

Code: Select all

INVITE sip:+49112233445566@sip.provider.com;user=phone SIP/2.0

the correct value for "calling prefix (incoming)" and "called prefix (incoming)" wold be "+".
Another possible request line for such an incoming call:

Code: Select all

INVITE sip:0049112233445566@sip.provider.com;user=phone SIP/2.0

the correct value for "calling prefix (incoming)" and "called prefix (incoming)" wold be "" (empty).
The received calling or called number is considered to be public if it has the SIP calling or called prefix (incoming) or the prefix is empty. Otherwise, the number is considered to be private. This means also if you enter a wrong value to prefix every call gets private (your problem?).

[tzepf]

Hi fe80,

seems like i face the "third" possible request line. I traced the SIP Protocols and got:

Code: Select all

 INVITE sip:497447****@192.168.***.***;transport=UDP;user=phone SIP/2.0
    Via: SIP/2.0/UDP 212.172.97.118;branch=z9hG4bKSSjglaoY;rport
    From: <sip:0171*******@sip.easybell.de>;tag=6467DC7B-5890B78000047982-47610700
    To: <sip:497447******@sip.easybell.de>

Right now i have + as calling prefix and called prefix, but i think its wrong in this case. ist empty better or something else?

thanks very much for your help!

[fe80]

Hi Tobias,
I would remove "+" from "called prefix (incoming)" because in 'INVITE sip:497447' is no prefix.

[tzepf]

Thanks, i'll give it a try! Now the part with the clear fix is pretty clear for me - if you have a hint what the difference between unknown, canonical and international format of numbering is useful it would be great...

Thanks again,
Tobias