Registration failed - SIP Trunk

Discussion in '3CX Phone System - General' started by Mehran Meidani, Sep 28, 2017.

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  1. Mehran Meidani

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    Hi,
    I got this message after I purchase license and upgrade from evolution to pro version:

    Code:
     [CM504005]: Registration failed for: Lc:10001(@5191030xxx[<sip:5191030xxx@pstn.fanaptelecom.ir:5060>]); Cause: There's no Contact in response from server
    Any idea?
     
  2. leejor

    leejor Well-Known Member

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    Run the firewall check.
    Contact your provider to see if they are receiving a registration attempt and if so to what "address" are they to reply. Is that address (yours) correct?
     
  3. Mehran Meidani

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    Hi Leejor,
    I've already run firewall check, everything works as expected. Despite of registration failure, incoming calls from sip trunks works! I'll let you know when I've checked the address from the provider.
    Thanks.
     
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