Polycom 2000 User Manual

Encryption is available at the conference and participant levels, based on 

AES 128 Media Encryption and DH 1024 Key Exchange standards. 
Media Encryption guidelines:
•

Encryption is not available in all countries and it is enabled in the 

MCU license. Contact Polycom Support to enable it.

•

Endpoints must support both AES 128 encryption and DH 1024 key 

exchange standards which are compliant with H.235 (H.323) to 

encrypt and to join an encrypted conference.

•

The encryption mode of the endpoints is not automatically 

recognized, therefore the encryption mode must be set for the 

conference or the participants (when defined).

•

Conference level encryption must be set in the Profile, and cannot be 

changed once the conference is running.

•

Mixing encrypted and non-encrypted endpoints in one conference is 

supported only for H.323 defined participants. Different states of 

encryption for predefined IP participants are possible, based on 

system flag settings: 

(ALLOW_NON_ENCRYPT_PARTY_IN_ENCRYPT_CONF).

•

In Cascaded conferences, to encrypt the conference the link between 

the cascaded conferences must be encrypted.

•

The ISDN/PSTN (H.320) protocol, as well as ISDN/PSTN endpoints 

do not support encryption. ISDN/PSTN participants can therefore 

only connect to encrypted conferences if the system is set up to allow 

the mixing of encrypted/non-encrypted participants in the same 

conference.

Conference Access
You can define whether access to conferences for encrypted and non-

encrypted IP participants is done at the conference level or at the 

participant level.