Polycom 1725-11530-310 User Manual

 Overview

2 - 13

—Encrypting audio streams to 

avoid interception and eavesdropping.

For more information on each feature and its associated configuration 

parameters, see the appropriate section in 

 on page 

.

The following new features were introduced in SIP 3.1:

—Ability for the SoundPoint IP phones to be 

able to receive a URL inside a SIP message (for example, as a SIP header 

extension in a SIP INVITE) and subsequently access that given URL in the 

Microbrowser.

—Allows customers to create their own soft keys 

and have them displayed with or without the standard SoundPoint IP and 

SoundStation IP soft keys.

—Allows customers to redefine soft keys to suit 

their needs. In SIP 3.0, this feature required a license key.

— Provides maximum microphone sensitivity, 

while automatically reducing background noise on SoundStation IP 7000 

conference phones.

—Equalizes the tone of the high and low frequency 

sound from the speakers on SoundStation IP 7000 conference phones.

—Displays a “pop-up” to user that 

is found in the Warning Field from a SIP header.

The following existing features were changed in SIP 3.1:

—The Diversion field can be used by the call server to inform 

the phone of a call’s history.

—If supported by the call server, you can supply a Music on 

Hold URI.

—A new “Label” field has been added to each 

contact directory entry.

—The attendant can now monitor all calls states and 

pickup remote calls.

The SoundPoint IP 300 and 500 phones will be supported on the latest 
maintenance patch release of the SIP 2.1 software stream—currently SIP 2.1.3. 
Any new features introduced after SIP 2.1.3 are not supported.