Q.850 Cause Code 47

[jerry harris]

Hello

My name is jerry harris and I am working on government Contract. We have a ASR1002 Cisco Border Element. We are using this device for call processing. We had an issue on march 16, 2015 processing calls through our Gateways. We have a Cisco Call Manager which was functioning fine.

Our issue was that the Cube generated  a Cause Code 47 which indicated a "resource unavailable event". We thought it was caused by the Cube being out of memory or tcp socket unavailable. We also checked the DSPfarm for any failures but that was okay. After checking Call Manager and the dial-peers on the Cube the only way could restore to normal was to reboot the Cube which fix the problem. Could this problem be caused by the Cube being out memory or a debug command still running in the background to cause this problem ? How do we check the Cube for memry failures or resources unavailable ? I would appreciate any help or solutions for future use.

Best Regards,

Jerry Harris

Apriva ISS

[George Thomas]

Resource unavailable "usually" happens when the router runs out of transcoding or MTP resources. It could also be the case that these resources were locked up and was never released. Do you know if an MTP/transcoder is being used for each and every call? Is MTP required checked on the SIP trunk to CUBE in CCM, if so then a MTP is being used. Do you have enough MTP resources to support the maximum number of calls - maybe you hit the highest number of calls but didnt have MTP resources.