SIP Client Multiple extensions

[sherif.elella]

fancy a puzzle?

i am trying to integrate a non-cisco with call manager, and i added the mac address using an advanced SIP Client for the multiple extensions feature. the support for that non-cisco device claimed that he worked on another project where the voice engineer was able to somehow add a SIP Client on CUCM with 25 extensions and have it work. 

I am unable to find the solution other than "Unassigned Associated Items" being the way to hold extra extensions , i am about to test this theory in 40 mins or so, any other ideas? how to add 20 working extensions to a non-cisco SIP Client on call manager?

[Dennis Mink]

Yeah you would register the 3rd party SIP client, using its extensions,  if you use authentication you might need separate UIDs for each extension.

[sherif.elella]

the phone button template on the advanced SIP Party client only allows you 8 extensions, i need to setup 25 extensions, i dont need to associate them with UIDs.. i just need to have working 25 extension on the left of the device on CUCM. 

I just tested add an extension under Unasigned Associated Items and it didn't work, even got the device rejected for registration. 

so again,

how do you manage 25 working extensions on a non-cisco SIP Client on CUCM? considering the phone button template. 

or should the device added be something different than a SIP Client?

[sherif.elella]

The solution in case you stumble upon this.

the phone button template does not matter, so you would create a single basic sip client and set one extension and the registration and "agreement" would happen based on the authenticatoin credentials on the phone level