Though VoIP is legal in Pakistan but PTA (Pakistan Telecommunication Authority) doesn't want to propagate VoIP Caller IDs to the called number. Most carriers replace VoIP Caller IDs with local number. I found just one telco company that sometimes allow VoIP Caller ID to appear at called number. Most of the countries (USA etc.) carriers allow caller ID spoofing. My question is How to send Caller ID with a company's name such as PepsiCola or digits 4444 using 3CX PBX with SIP trunk. When I call from 3CX Windows client most of the time local numbers appear at called numbers. I've set outbound caller id in extension and also in sip trunk outbound parameters From: UserPart I select "Outbound CallerID" Outbound caller ID taken from extension in management console.
Caller ID spoofing in Pakistan using 3CX PBX and SIP trunk
1.7k Views Asked by ever shine At
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This is depends of SIP trunk provider set up - You can send anything in this fields, but voip operator would disallow this or replace with own settings. Further, any CallerID / Contact and another fields in sip communication mus be also allowed in second part of call - for example in my country mobile networks is more restricted about Caller ID then fixed line operators.