5400s on ipoffice R11

[welli1]

Will the 5400s phone work on the ipoffice r11?

everything I read says yes but in my research it seams a lot of people have small bug issues, i dont want to tell my customer they will work if they are not supported / old firmware
and start having issues.

[markgallagher]

Then you won't like the answer:

- They will work (fundamentally they use the same signalling as later phones that are still supported so hard for Avaya to make them not work).

- However, IP Office Release 9.1 was the last release on which they were officially supported. So if you customer finds any issues or problems with the phones you won't get any support for Avaya for fixes.