Polycom SIP 2.2.0 manual Migration Dependencies, Model BootROM SIP Application

Administrator’s Guide SoundPoint IP / SoundStation IP

Model	BootROM	SIP Application
IP 301/501	2.6.1 or later	1.4.2, 1.5.4, 1.6.1 or
		later
IP 320/330	3.2.3 B or later	2.1.1 or later
IP 430	3.1.3 C or later	1.6.6 or later
IP 550	3.2.2 B or later	2.1 or later
IP 600	2.0 or later	1.0 or later
IP 601/EM	3.1 or later	1.6 or later
IP 650/EM	3.2.2 B or later	2.0.3 B or later
IP 4000	2.6 or later	1.4 or later

Migration Dependencies

In addition to the bootROM and application dependencies, there are certain restrictions with regard to upgrading or downgrading from one bootROM release to another bootROM release. These restrictions are typically caused by the addition of features that change the way bootROM provisioning is done, so the older version become incompatible.

There is always a way to move forward with bootROM releases, although it may be a two or three step procedure sometimes, but there are cases where it is impossible to move backward. Make special note of these cases before upgrading.

Note that:

•1.x cannot be upgraded to any 2.x automatically

•2.0 and 2.1 can not upgrade past 2.4

•Only 2.6 can upgrade to 3.0

•3.0 cannot be downgraded

For example, a two step upgrade would be necessary from bootROM 2.1 to bootROM 2.5. A direct upgrade is not supported, but upgrading to bootROM 2.2 first, then upgrading to 2.5 will work.

Downgrade restrictions are limited to major releases. Going from 2.x to 1.x and from 3.x to 2.x are both impossible in the field.

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