We have a SIP enabled Avaya Communication Manager Environment. Some Cisco phones can work in this environment but I am looking for something a little more than that.
We have Avaya VPN phones, which do not support SIP. They have to be H.323 to be used as a VPN phone. I believe SPA 525G is a Cisco phone that can be a SIP integrated VPN phone in Cisco systems. Is it possible to use SPA 525G as a SIP integrated VPN phone in an Avaya environment? If so, any tips, docs would be very appreciated.
Thanks in advance...