Is there any way to make the 9630 Desktop Headset work just as a SIP IP telephone, without the extensive need for additional Avaya equipment. All of our infrastructure is Cisco and we may receive about 80 Avaya deivces and I am wondering if they would work just as an IP telephone, without any additional hardware from Avaya or messing with the configuration of the Cisco devices.


Yes, they do support SIP, there is extensive documentation on avaya.com about the firmware:



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