Problem with call error 503 or NAT/ALG

[sebastian_rojas]

Hello!

i'm looking to discover what a heck is going on with this, because i have implemented 3cx
in other customer and just fine, but now i installed in a new customer, but i'm getting this error

so i understand that failed because 503 Service Unavailable/INVITE
of the voip gateway, reading the mediatrix gateway it says that could be the SDP options,
but in the last part it says that it NAT/ALG check:L:86.1[Extn:119] REQUEST 'INVITE'



16-ene-2017 16:43:39.663 Leg L:86.1[Extn:119] is terminated: Cause: BYE from PBX
16-ene-2017 16:43:39.612 [CM503020]: Call(C:86): Normal call termination. Call originator: Extn:119. Reason: Server Failure
16-ene-2017 16:43:39.612 L:86.1[Extn:119] failed to reach Line:90001>>990930064, reason Server Failure
16-ene-2017 16:43:39.611 Leg L:86.2[Line:90001>>990930064] is terminated: Cause: 503 Service Unavailable/INVITE from 130.0.10.70:5060
16-ene-2017 16:43:39.611 Call to T:Line:90001>>990930064@[Dev:sip:[email protected]:5060;transport=udp] from L:86.1[Extn:119] failed, cause: Cause: 503 Service Unavailable/INVITE from 130.0.10.70:5060
16-ene-2017 16:43:39.606 [CM503003]: Call(C:86): Call to <sip:[email protected]:5060> has failed; Cause: 503 Service Unavailable/INVITE from 130.0.10.70:5060
16-ene-2017 16:43:39.478 [CM503025]: Call(C:86): Calling T:Line:90001>>990930064@[Dev:sip:[email protected]:5060;transport=udp] for L:86.1[Extn:119]
16-ene-2017 16:43:39.471 [CM503027]: Call(C:86): From: Extn:119 ("gustavo vilsaint" <sip:[email protected]:5060>) to T:Line:90001>>990930064@[Dev:sip:[email protected]:5060;transport=udp]
16-ene-2017 16:43:39.471 [CM503004]: Call(C:86): Route 1: from L:86.1[Extn:119] to T:Line:90001>>990930064@[Dev:sip:[email protected]:5060;transport=udp]
16-ene-2017 16:43:39.471 Line limit check: Current # of calls for line Lc:90001(@mediatrix[<sip:[email protected]:5060>]) is 0; limit is 1
16-ene-2017 16:43:39.470 Call(C:86): Call from Extn:119 to 990930064 matches outbound rule 'Rule for mediatrix'
16-ene-2017 16:43:39.468 [CM503001]: Call(C:86): Incoming call from Extn:119 to <sip:[email protected]:5060>
16-ene-2017 16:43:39.468 NAT/ALG check:L:86.1[Extn:119] REQUEST 'INVITE' - some of SIP/SDP headers may contain inconsistent information or modified by intermediate hop
SIP contact header is not equal to the SIP packet source(IPort):
Contact address:130.0.10.63:59758
Received from :130.0.10.63:59766



Best Regards

 

[YiannisH_3CX]

Hello @sebastian_rojas

Please navigate to trunks, edit your gateway and make sure that under options allow inbound and allow outbound calls is enabled.

 

[sebastian_rojas]

Hello,
i verify the trunk and it was enabled, but in the section of the : SIP trunk capabilities
the option of
re-invite: disable
replaces: disable
require registration for: in and outgoing calls

Should i enable that option for re-invite?


Best Regards

 

[YiannisH_3CX]

Is you whole installation full public? PBX, phones, gateway? As i understand it the service unavailable comes from 130.0.10.70 which is the gateway, the pbx sends the call out as it should. Also from the screenshots your config seems correct so i would focus on the gateway side.

 

[sebastian_rojas]

thanks a lot men, no in this business, they have this public range of ip address as a private range
they are not using RFC1918, that is the reason both device are in the same vlan

from the voip gw i receive this info, so i believe it's a type of configuration on that side
thanks for your help, i will continue to verifying the problem




best regards

 

[sebastian_rojas]

hello, i finally get the asnwer, thanks a lot for your help
Best Regards