we are using CCM 7.0 and configure MGCP gateway with E1 PRI. users encounter the caller ID issues when dialing out to external phone calls, the IPT display the company mainline number eg. 29967688 for Hong Kong rather than the DID / extension numbers from users. we have checked below -
1. Checkbox for External Phone Number Mask on DN Config window
2. Checkbox for Calling Party's External Phone Number Mask under Calling Party Transformations on Router Pattern window
3. Calling Party Transform Mask under Calling Party Transformations on Route Patterns page is set to 8522996XXXX#
With the above setting, issue remain unresolved.
Caller ID (internal name and number) works perfect for internal 4-digit extension calls, is there any way that we could do the fine-tune / programming on CCM or gateway for the translation-rules to display the caller number when dialing out external outbound calls