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Patton SN4112 FXO - 503 Service unavailable

Discussion in '3CX Phone System - General' started by JoelyB, Jan 9, 2017.

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  1. JoelyB

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    Hello,

    Just started playing around with 3CX and having a problem trying to get the Patton SN4112 FXO to make outgoing calls. Activity log has an entry stating that Cause: 503 Service Unavailable/INVITE from 192.168.0.71:5060.
    The Patton has been factory reset and the configuration file generated in 3cx was then uploaded to the 4112 and then rebooted.
    Found this article on Patton's site:
    http://support.patton.com/index.php...sip-message-when-sending-a-sip-call-to-the-sn
    After looking through the template file 3cx generated it looks like the 'trust remote' command is run.

    interface sip IF_SIP
    bind context sip-gateway GW_SIP
    early-disconnect
    route call dest-table RT_SIP_TO_FXO
    remote 192.168.0.20 5060
    trust remote

    Any suggestions?

    Thanks
     
  2. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

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  3. JoelyB

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    Hi Yannish, rebooted everything and all appears to be running okay now. Just got one issue left now, the line isn't cleared when a voicemail is left. The line is held until the voicemail duration is reached. Any thoughts?
     
  4. Scottie Holden

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    I'm experiencing the same issue with lines not being released until voicemail duration is reached. Ideas?
     
  5. leejor

    leejor Well-Known Member

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    You will have to configure a disconnect method that is compatible with your PSTN provider. Either, silence (not the best), disconnect tone (this must match what its send by your provider to tell you to hang-up), or (the best) CPC , Calling Party Control. This is a very short voltage disconnect sent from the central office when the far end hangs up. Not all providers supply this, but it is almost fail-safe if they do.
     
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