Forward to mobile phone

Discussion in '3CX Phone System - General' started by genesisrl, Jul 25, 2014.

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  1. genesisrl

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    Hi,
    I'm trying to forward a call from an extension logged in a queue to a mobile phone.
    When I perform the transfer, I get the message "Transfer failed" on the display of the phone (Snom 370).
    In the 3CX log I found this error message:

    Call to <sip:xxxxxxxxxx@xxxxxxxx:5060> has failed; Cause: 403 Do not use late offer-answer model/INVITE from xx.xx.xx.xx:5060

    Any suggestion?

    The option in Settings/General that allows forwardings to external numbers from queue/ring groups is checked.

    3CX Phone System v.12 SP6
     
  2. leejor

    leejor Well-Known Member

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    Do the X's represent the IP of your VoIP provider? Have you tried sending the call to a remote phone that is not a mobile? Do you get the same fail code?

    What provider are you using, perhaps others have had the same issue with them.
     
  3. ambronex

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    I am also receiving this error.

    Have you got it working genesi or not yet?

    Here is a extract from my logs:
    27-Aug-2014 09:45:36.116 L:144.1[Line:10021<<+2781xxxxxxx] failed to reach Line:10021>>079xxxxxxx, reason Forbidden
    27-Aug-2014 09:45:36.113 Leg L:144.3[Line:10021>>079xxxxxxx] is terminated: Cause: 403 Do not use late offer-answer model/INVITE from 41.xx.xx.xx:5060
    27-Aug-2014 09:45:36.113 Call to T:Line:10021>>079xxxxxxx@[Dev:sip:2712xxxxxxx@41.xx.xx.xx:5060] from L:144.1[Line:10021<<+2781xxxxxxx] failed, cause: Cause: 403 Do not use late offer-answer model/INVITE from 41.xx.xx.xx:5060
    27-Aug-2014 09:45:36.112 [CM503003]: Call(C:144): Call to <sip:079xxxxxxx@41.76.200.38:5060> has failed; Cause: 403 Do not use late offer-answer model/INVITE from 41.xx.xx.xx:5060 :cry:
    27-Aug-2014 09:45:35.988 [CM503025]: Call(C:144): Calling T:Line:10021>>079xxxxxxx@[Dev:sip:2712xxxxxxx@41.xx.xx.xx:5060] for L:144.1[Line:10021<<+2781xxxxxxx]
    27-Aug-2014 09:45:35.935 [CM503005]: Call(C:144): Forwarding: T:Line:10021>>079xxxxxxx@[Dev:sip:2712xxxxxxx@41.xx.xx.xx:5060]
    27-Aug-2014 09:45:35.934 L:144.1[Line:10021<<+2781xxxxxxx] forwards call from Extn:399 to Out#:>>Rule{Head Office}>>079xxxxxxx based on rule Fwd[Available/NotReg]
    27-Aug-2014 09:45:35.934 L:144.1[Line:10021<<+2781xxxxxxx] failed to reach Extn:399, reason Not Registered
    27-Aug-2014 09:45:35.934 [CM503017]: Call(C:144): Target is not registered: Extn:399
    27-Aug-2014 09:45:22.034 [CM503007]: Call(C:144): Ivr:805 has joined, contact <sip:805@127.0.0.1:40600>
    27-Aug-2014 09:45:22.030 [CM503007]: Call(C:144): Line:10021<<+2781xxxxxxx has joined, contact <sip:2712xxxxxxx@41.xx.xx.xx:5060>

    To explain what what is in these logs:
    2712xxxxxxx - main SIP Trunk on 3CX
    41.xx.xx.xx - IP of SIP Trunk provider
    Extn:399 - the dummy extension that needs to forward to a external number
    2781xxxxxxx - external number dialed from
    079xxxxxxx - Mobile number to forward to

    When calling ext 399 form a local extension it forwards with no problem, its only when a external number calls in and then needs to forward. The option in Settings/General that allows forwardings to external numbers from queue/ring groups is checked.

    3CX Version 12 SP6.1

    Any help would be greatly appreciated.

    Regards,
    Ralph
     
  4. lneblett

    lneblett Well-Known Member

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    It appears that there is something in the Invite to your SIP provider on the forwarding of the call to your cell that they do not like. What you may want to do is to take a wireshark capture of a failed call and a working call and see if you can identify the difference.

    What you may also want to do is to turn re-invites on with your SIP provider and see if that causes a difference.

    Finally, if none of the above helps, call the SIP provider and ask them to monitor a call that fails and see what they recommend as a solution.

    The 403 code simply means that some aspect was not right, but at least they attempted to qualify with the late invite info.
     
  5. SY

    SY Well-Known Member
    3CX Support

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    Quick fix:
    Open
    Settings->Advanced->Custom parameters tab
    filter by - enter ALLOWNOSDPIFBOUNDTOMS
    You will see one line in the list of parameters
    Name ALLOWNOSDPIFBOUNDTOMS
    Value 1
    You need to change Value to 0
    press Apply or OK button.
    Restart is not required.
     
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