Hello. Can I use Avaya 4620SW with Asterisk? I am currently running the phone with H.323 firmware. If not, how can I upgrade the firmware on Avaya to SIP?
Thanks in advance
Hello. Can I use Avaya 4620SW with Asterisk? I am currently running the phone with H.323 firmware. If not, how can I upgrade the firmware on Avaya to SIP?
Thanks in advance