How to process inbound routes with unfamiliar CID


I have a PORTech GSM-VoIP gateway and one of its many annoying problems is that it reports the blocked caller ID numbers to Asterisk as “N” making it impossible to process these calls. Is there a way to allow FreePBX to enter “N” as a CID in the inbound route settings?



Don’t think that will directly address your specific problem but it may give you some ideas for how to deal with it.