Estimating phone firmware upgrade duration

Answered Question
Aug 27th, 2009
User Badges:

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?

Correct Answer by Jaime Valencia about 7 years 11 months ago

Table 3-4 TFTP File Transfer Times for SCCP Devices

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



if this helps, please rate

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
nstathak Thu, 08/27/2009 - 21:09
User Badges:

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.


This Discussion