Estimating phone firmware upgrade duration

Answered Question
Aug 27th, 2009

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?

I have this problem too.
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Correct Answer by Jaime Valencia about 7 years 3 months ago

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

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nstathak Thu, 08/27/2009 - 21:09

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.

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