Wrong caller ID on SIP Trunking

[pmvgrocha]

Hello all,
can anyone help me with this one?

I have an Alcatel OXE (site A) connected with a Cisco Call Manager (site B) using a SIP trunk.

Site A internal numbering plan is 1xxx, site B is 3xxx.

The issue is that when an user from site B calls to an user from site A the Alcatel OXE replace the first digit with "2".

Example:

User 3100 (Cisco) calls to user 1000 (Alcatel OXE), user 1000 deskphone shows 2100 instead of 3100.

Why is that?

Thanks in advance.

[frank]

Check out the External Callback Translation rule, under Translator / External numbering plan / Translation table
You might have to add one for the Cisco

[haroun]

mtracer &motortrace logs please

[pmvgrocha]

Thank you all for your contribute!
It's solved, the callback translation rule was the problem. I added a new rule and now is working just fine!

[frank]

Glade we were able to help!