
DMA OperationsGuide  Conference Settings
178 Polycom, Inc.
Dialing prefix  E.164 dial string prefix for calling the system. 
If neighboring with a Polycom gatekeeper on which the 
Simplified Dialing service is enabled and uses a prefix of 
9 (the default), don’t use 90-99. The neighbor 
gatekeeper recognizes the 9 as a known prefix and 
ignores the second digit. 
If a prefix is specified, it’s used for SIP calls as well so 
that the same number can be dialed from both H.323 
and SIP endpoints. 
Caution: Changing the dialing prefix terminates any 
existing H.323 calls. When you click Update, the system 
prompts you to confirm. 
Default max total 
participants
Specifies the maximum conference size assigned to a 
conference room if a larger or smaller maximum size 
isn’t specified for it. 
Automatic (the default setting) uses the largest 
conference size supported by the MCU as the default 
maximum. 
Default conference 
template 
Default template used by the system. See “Conference 
Temp lat es”  on page 179. 
Default territory  The territory assigned to a user’s conference room if it 
isn’t specified at the user or conference room level. 
A conference room’s territory assignment determines 
which DMA cluster hosts the conference (the primary 
cluster for the territory, or its backup cluster if 
necessary). Up to three territories in a superclustered 
system can host conference rooms. 
Default MCU pool order  Default MCU pool order used by the system. See “MCU 
Pool Orders” on page 141. 
Minimum and maximum 
generated room ID 
Specify the minimum and maximum values for 
auto-generated room IDs created for custom conference 
rooms. Values may be up to six digits long, and the 
minimum must be less than the maximum. 
The six-digit limit applies only to generated IDs for 
custom conference rooms. 
Conference Duration Default maximum duration of a conference (in hours and 
minutes) or Unlimited (the maximum in this case 
depends on the MCU). 
Table 8-1 Fields on the Conference Settings page (continued)
Field Description