IP phone keep ailive signal

[fvaldez520]

Hey does anyone know how many keep alive signals it takes for a ip phone to unregister

[Rob Huffman]

Hi Fabian,

I remember wondering this same thing;

Typically, three times the keepalive period is required for a phone to discover that its connection to Cisco CallManager has failed. The default keepalive period is 30 seconds.If a Cisco IP phone has multiple Cisco CallManagers in its CallManager list, it progresses through its list of secondary and tertiary Cisco CallManagers.

From this good doc (provided kindly by Ajaz);

http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide_chapter09186a0080110b97.html#wp1322470

Hope this helps!

Rob