Hope you can recommend some areas here to look in, because this is drving me crazy!
Have inherited a Cisco CUCME 7.1 built on a 2811 router. I have both SIP(7941) and SCCP (7941/7960) handsets, all up and working. (all using 4 digit patterns).
If I dial SIP > SCCP , the SCCP displays the inbound caller infomation - this is OK
If I dial SCCP>SCCP, the SCCP displays the inbound caller information - this is OK
If I dial SCCP to SIP, then the SIP displays "From Unknown Number".
Bearing in mind that these phones are all on the same pbx switch I am at a loss to understand why this doesnt work. (Judging by the lack of mentions of this or similar problems on various google searches, I get the impression this should work. the only times it appears there may be issues is when leaving the PBX to go to another PBX / external service Provider - something I am not doing at the moment).
I have checked everything I can find regarding caller-id to ensure I am not blocking it in anyway.
there are no translation rules built for ext to ext dialling, and I cant see that I would need one for internal to internal calls either. (but tell me if I am wrong)
I have configured the directory and relevant settings, but this has made no difference.
I have run debug (debug voice ccapi inout) and captured the trace.To me it looks like the SCCP is sending its extension number, but for some reason (which I have not worked out yet), the SIP phone does not receive it.
I have tried different versions of phone software but they made no difference. I am extremely reluctant to "factory reset" the whole switch - apart from a lack of clear instructions on how to do this is mightly putting me off doing this anyway. I am new to the Cisco Express, and have only been working with it for a week, so any advice or suggestions would be greatly appreciated.
I can provide config and outputs fot debug if anyone is really keen!
A frustrated Cisco Express user!!!