Accepted Solutions
If the only thing that has changed is the use of a new model of firewall this is where you should focus your attention. Logically this is where your problem lies.
All the shared RTMT output shows is download errors for various files, that doesn’t give any clue to the issue you have. To see if the call hits the gateway I would suggest that you run debug voip ccapi inout and debug ccsip message. Running ccsip all is not advisable as it puts a high load on the gateway. One way to see if the gateway and CM has connectivity is to use SIP option ping. Do a search for how to set this up and if you cannot figure out how to get it setup please get back to this post.
If you do not see any output with those debugs turned on the call is not reaching the gateway from CM. Do a DNA to verify that CM does state that the call should be sent to that specific gateway. If it does and you still do not see anything there is likely something that blocks the traffic from getting into the router.
May I ask why you’re having ISDN debugs activated when you have a SIP connection to your service provider?
IF there is firewall between CUCM and Gateway, its recommended to turn of the SIp inspection on firewall.
As @Roger Kallberg mentioned Debug Voice CCAPi Inout and debug CCSIP messages will help you identify if calls are landing on this gateway. debugs ccsip all is not recommended as this will affect the router performance.
SIp Inspection is a different thing. Even if they have a policy any any between CUCM and IOS gateway ask them to disable the SIP inspection and its a global settings.
Can you enable option ping on sip profile and apply this on the CUCM trunk. This will show you if the Trunk is UP or not.
Also from CUCM CLI you can check the connectivity using utils network connectivity command.
Is will be seen here.
You can also look in the gateway to check the status of the dial peer that points to CM.
i checked mine is cucm 8.6 and its not showing that info in the trunks.
also on ios gateway the dial peer point to my cucm is up.
the issue is that no call goes from the cucm side to the router. the network guy started packet capture and there were no packets desitned to the ios gateway. while the DNA is showing the proper routing (rp>rl>rg>device).
i used csim start command and got below result from this router. from other router i am getting calls properly.
csim start 7225
csim: Test started.This command can only be run one at a time.
csim: called number = 7225, loop count = 1 ping count = 0
csim err:csim_do_test invalid major major(1024) minor(0x0)
csim err csimDisconnected recvd DISC cid(9151)
csim: loop = 1, failed = 1
csim: call attempted = 1, setup failed = 1, tone failed = 0
here is my dial peer summary
#sh dial-peer voice summary
8.6 is end of everything. Advise you to upgrade your system to a supported version.
If there is no traffic seen in a packet capture there is likely something that is wrong in the configuration in CM, like wrong IP address on the SIP trunk configuration element or something that simply stops the traffic from reaching the point where the packet capture is made. You can do a packet capture directly in CM from the CLI, that should be clear of any traffic hindering. If you still do not see any traffic from the CMs to the gateway in that there is likely either something wrongly configured or you’re hitting some defect. Has this ever worked?
If the only thing that has changed is the use of a new model of firewall this is where you should focus your attention. Logically this is where your problem lies.
