sip interoperability

  1. 3CX Pro SIP iiNet

    Hi, I am having issues getting a 3CX install to make outbound calls. Getting an error "Not Found 404". SIP trunk is registered ok. Looks like call is being rejected by registrar, anyone have any ideas re iiNet SIP in Australia?

  2. SIP interoperability pre-requisite check

    Hello Community, We are based in india. One of the telecom providers providing SIP trunk connection has asked us to check for support from PBX for interoperability with their connection. Need your support for following queries regarding 3CX: User PBX should support the following format at...
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