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CUCM Monitoring SIP Trunk

Hi All,

I would like to ask if somebody how is the best solution to monitor a SIP Trunk?

Because we are having now a SME Cluster and to this cluster we will connect a CUCM Cluster but currently I have no idea how to monitor it.

Is it possible that the CUCM will drop a syslog entry if SIP trunk is down so that we can implement a specifc error message into our ticket system?

Any help is appreciated.

Many thanks in advance,

Cheers

Michael

2 ACCEPTED SOLUTIONS

Accepted Solutions
Cisco Employee

Re: CUCM Monitoring SIP Trunk

Hi,

There's no up/down status for a SIP trunk, this is because of its nature and they are never registered in CUCM and is used to route calls.

Basically a SIP trunk is more like a logical concept other than a physical trunk (e.g. T1 trunk or Ethernet trunk).  There's no "keepalive" signal on the
SIP trunk.  When the two parties on the SIP trunk try to send SIP messages to each other, those messages are being sent over IP network like HTTP messages.

If one party was down (dead), the other party would timeout on the response.  But they don't keep track of each other.

Thanks,

Lakshmi

Cisco Employee

Re: CUCM Monitoring SIP Trunk

Usually you'd want to use SIP OPTIONS pings to monitor the SIP trunk, however call manager doesn't currently support this.

2 REPLIES
Cisco Employee

Re: CUCM Monitoring SIP Trunk

Hi,

There's no up/down status for a SIP trunk, this is because of its nature and they are never registered in CUCM and is used to route calls.

Basically a SIP trunk is more like a logical concept other than a physical trunk (e.g. T1 trunk or Ethernet trunk).  There's no "keepalive" signal on the
SIP trunk.  When the two parties on the SIP trunk try to send SIP messages to each other, those messages are being sent over IP network like HTTP messages.

If one party was down (dead), the other party would timeout on the response.  But they don't keep track of each other.

Thanks,

Lakshmi

Cisco Employee

Re: CUCM Monitoring SIP Trunk

Usually you'd want to use SIP OPTIONS pings to monitor the SIP trunk, however call manager doesn't currently support this.

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