Cisco SIP based phones have SIP extensions that use the SIP protocol for Cisco proprietary operations like registering a Cisco SIP phone by MAC Address. This blog will take a high level look at ...

Hi, my Cisco 7940G stuck in configuring ip,i use DHCP and try, 123456789*0# and *6# combination to reset the phone but i don't solve this problem,i can not to use configuration network menu,please ...

Survivable Remote Site Telephony (SRST) is a Cisco Unified Communications Manager (CUCM) call processing backup mechanism that allows Cisco IP phones to register to a Cisco router. A Cisco router in ...