Polycom DOC2702A User Manual

Appendix H-Setting the MCU for Integration Into Microsoft Environment

Polycom, Inc.

Registration of conferencing entities (Meeting Rooms, Entry Queues and SIP Factories) with 

the SIP server adds these conferencing entities to the buddy list with their presence. It 

enables the Office Communication Server client or LYNC Server client users to see the 

availability status (Available, Offline, or Busy) of these conferencing entities and connect to 

them directly from the buddy list.

•

Registration with Presence of up to 100 conferencing entities to a single SIP Server is 

supported. When this number is exceeded, the additional conferencing entity may 

appear to be successfully registered but the presence status will be shown as 'Offline' in 

Lync for any entities beyond the limit.

•

Lync endpoints cannot connect to conferencing entities that their presence is “offline”.

•

The Conferencing Entity (Meeting Room or Entry Queue or SIP Factory) has to be 
added to the Active Directory as a User. 
Make sure that a unique name is assigned to the conferencing entity and it is not 

already used for another user account in the Active Directory. 

•

The conferencing entity name must not include any upper case letters.

•

When the MCU system is shutting down while a Meeting Room is still active, as 

indicated by its presence, the status remains active for 10 minutes during which Lync 

endpoints cannot connect to the Meeting Room. After 10 minutes, the Meeting Room 

Status changes to “offline”. 

•

From Version 7.1, registration of the conferencing entity is defined in the Conference 

Profile (and not in the IP Network Service), enabling you to choose the conferencing 

entity to register. 

conferencing 
entity status: 
Available 
Offline

Right-click the 
conferencing 
entity and then 
select Call or 
Start a Video 
Call