Estimating phone firmware upgrade duration

[dual_line]

I need to upgrade a large number of cisco phones spread across multiple sites with varying bandwidth.

Is there any way I can estimate the time it will take to upgrade a specific site based on the number of phones, firmware image size, WAN bandwidth etc?

[Jaime Valencia · Accepted solution]

Table 3-4 TFTP File Transfer Times for SCCP Devices

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/7x/netstruc.html#wp1050963

If not your version just open the SRND from your version in same chapter for specifics.

HTH

java

if this helps, please rate

[nstathak]

why don't you enable peer firmware sharing first then perform your upgrades, it will save lots of time when upgrading firmware.

There are dependencies but if your lucky you'll using a similar phone type and thus pulling the image once over the WAN.