[cisco-voip] Errors 18 and 19 on incoming call only through subscriber

[ROZA, Ariel]

 Guys,



I am having and odd situation:



I have a CUCM cluster ( Pub & 1 Sub) where i have set up a new branch office with an H323 Gateway and several phones. The config template is similar to other already working branches, but in this particular branch incoming calls are behaving strangely.

PSTN calls come through a FXO port, pass an autoattendant TCL script  on the GW and get routed to CUCM via two identical dialpeers ¡, one for the Sub and one for the Pub.

Debugs show that if calls use the Dialpeer to the Pub, the call goes fine, and the receiver phone answers the call. But if the call uses the Subs dialpeer, it fails with a Disconnect Cause code 18 (user busy) or 19 (user busy - user alerted).



The destination in both cases is the same: a Hunt List that is reachable via any internal phone.



DNA shows the logic is ok, and debugs on both, the gateway and CUCM show the same results, so conectivity should not be an issue.



 Does anyone have any suggestion, besides rebooting the Subs?



CUCM version is 8.6.2

The Pub and the Subs are in different subnets.



Regards,



Ariel.
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