How to use Cisco IP Phone 7821 with Asterisk SIP server


#1

I have tried some sample but cannot configure my cisco 7821 IP phone to Asterisk server. I have install softphone and it run ok.
how to fix it?

http://labs.wrprojects.com/configuring-a-cisco-9951-phone-for-asterisk/
http://www.ayobamiadewole.com/Blog/How-to-provision-Cisco-IP-Phones-for-use-with-Freeswitch