I am trying to troubleshoot an intermittent inbound calling problem.
Right now I have some debugs enabled on the router and that output is being sent to a syslog server.
The calls are all coming inbound on POTS lines.
I have caller-id enabled on the FXO ports in the router.
In the debug output is see "[2/0/12] get_fxo_caller_id:Caller ID receive failed. parseCallerIDString:no data." and also "Calling Number=(TON=Unknown, NPI=Unknown, Screening=Not Screened, Presentation=Allowed)"
Is there anything else I need to do or check into to get caller id to work?
Could the caller id info be missing because the telco is not sending it?
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