I have a customer with uc520 and the issue is we are not getting the caller id thru fxo trunk. IP phone showing "From Unknow Number". If am connecting an analog phone it displaying the caller id.
On voice port i tried with caller id enable, caller id enable type 1 and type 2, caller id alerting ring 1,2,3,4 and also tried caller id alerting dsp-pre-allocate with cptone AE and BR.
In ccapi inout debug the cisco ani fieled in blank.
Please see the attached debug vpm signal, debug ccapi inout , sh telephony service, sh run.
Any help on this is highly appreciated.