[cisco-voip] 7900 (SIP based) series and other vendors' pabx

[Syed Khalid Ali]

Dear all,

Need some suggestion on 7900 series IP Phones and I have seen a lot of
messages on this forum and on internet as well. Can Cisco 7900 series
IP Phones and Conference Stations be deployed with third party
vendor's telephony servers including Avaya, Nortel, Siemens and
Asterisk? Please share you experiences.

Thanks,
Khalid