SIP Third-Party Endpoint: Subscribe/Notify support?

[steve101]

Hello! It appears that CUCM does not support Subscribe/Notify (RFC 4235) for Third-Party Endpoints (or at all?). Are there any other similar protocols that are implemented that could be used to monitor the In-Use state of other phones? (i.e. a means of supporting BLF?) Thanks! Steve

[amoherek]

Hi Steve,

If you look at the CUCM SIP Line Messaging Guide, Supported Event Packages section, the dialog and presence event packages can be used for specifically for this. Here's a link - https://developer.cisco.com/fileMedia/download/8990b868-e764-43ff-b4fa-15829896aac7

Have you found information that contradicts this?

Thanks,

Adrienne