Cisco FXO Caller id receiving problem in PSTN connection
Cisco FXO Caller id receiving problem in PSTN connection Error message: (generated by ' debug vpm signal ' ) ~~~~~~~~~~~~~ err msg 1) get_fxo_caller_id:Caller ID receive failed. err msg 2) htsp_ephone_start_caller_id_tx calling num= calling name = called num=200 orig called num= Check caller-id support in FXO ( click here ) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ check caller-id feature support in FXO Card using above link Configure advanced options ( click here ) ~~~~~~~~~~~~~~~~~~~~~~~~~~ Above document shows how to configure Caller ID advanced options( dsp-pre-alloc, line-reversal ) Solution 1: ~~~~~~~~~~~ voice-port 0/0/0 caller-id enable caller-id alerting ring 1 (default) or voice-port 0/0/0 caller-id enable caller-id alerting ring 2 Solution 2 ~~~~~~~~~~ upgrade ios to higer version (recommended method) when the error is fixed debug output should be: get_fxo_caller_id:Caller ID received. Message type=4 length=19 checksum =9D May 17 09:28:42.327: [0/1/1] Caller ID ...