Polycom SIP 3.0.2 ユーザーズマニュアル

Administrator’s Guide SoundPoint IP / SoundStation IP 

C - 8

This table summarizes some the major dependences that you are likely to 
encounter:

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.

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 560

4.0.1 or later

2.2.2 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 650/BEM

4.0.1 or later

2.2.2 or later

IP 4000

2.6 or later

1.4 or later