I'm testing in lab cube config for sip options ping. I have 2 callmanagers, 1 cube and 1 IMS(SP sip trunking) device.
in cube I'm using c2851nm-ipvoice_ivs-mz.124-24.T2.bin.
I can use the command voice-class sip option-ping 60 on dial-peer but with debug ccsip messages, I don't see anything.
any ideas ?
I can't use voice-class sip options-keepalive up-interval down-interval retry, command is not recognised by IOS. Which software do I need to take ?
Is this a licensed feature ? I thought 12.4T would be enough.
In fact I just want a mechanism to check if the remote device is SIP alive.