Polycom 1725-11530-310 ユーザーズマニュアル

Administrator’s Guide SoundPoint IP / SoundStation IP 

C - 10

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.

On SoundPoint IP and SoundStation IP phones, certain multiple key 

combinations can be used to reboot the phone and restore factory defaults. 
For other methods for resetting and rebooting your SoundPoint IP or 

SoundStation IP phones, refer to “Quick Tip 18298: Resetting and Rebooting 

SoundPoint IP Phones” at 

.

For the key combination, press and hold certain key combinations (depending 

on the phone model) simultaneously until a confirmation tone is heard or for 

about three seconds:

• IP 301: Volume-, Volume+, Hold, and Do Not Disturb

• IP 320 and 330: Volume-, Volume+, Hold, and Hands-free

• IP 430 and 501: Volume-, Volume+, Hold, and Messages

• IP 550, 560, 600, 601, and 650, and 670: Volume-, Volume+, Mute, and 

Messages

• IP 4000 and 6000: *, #, Volume+, and Select

• IP 7000: *, #, Volume-, and Volume+