
Programming
2-10 
Pooled Extensions 
Use this section to add new lines to existing pools if your system is configured for 
Hybrid mode. To assign a new line to a pooled extension as an individual line, 
follow the procedures in “Key Extensions.” 
If you add an outside line to your system for use in an existing pool, use Dial  
Mode (#201) if the new line is a rotary line and Pool Line Assignment (#207) to 
add the line to an existing pool. 
IMPORTANT:
Do not use Number of Lines (#104) if you add lines to the system after in itial 
setup, because it changes Pool Line Assignment (#207), Pool Extension 
Assignment (#314), Pool Access Restriction (#315), Automatic Line 
Selection, and Line Ringing for existing pools back to factory settings. 
Additionally, it changes Line Assignment (#301), Line Access Restriction 
(#302), Automatic Line Selection, and Line Ringing for individual lines back to 
factory settings. To change pool assignments without affecting other settings, use 
Pool Line Assignment (#207) and Pool Extension Assignment (#314). 
Adding New Pools
Use this section if your system is configured for Hybrid mode to c reate new pools. 
If you add outside lines to your system for use in a new pool, use Dial Mode 
(#201) if the new lines are rotary lines, Pool Line Assignment (#207) to assign 
lines to the new pool, Pool Extension Assignment (#314) to assign the new pool 
to specific extensions, Line Ringing (Centralized Telephone Programming) to 
specify when the new pool will start ringing at each extension that has the p ool, 
and Pool Access Restriction (#315) to limit an extension’s access to all the lines 
in the new pool. Also use Automatic Line Selection (Centralized Telephone 
Programming) to add the new pool to the extension’s Automatic Line Selection 
sequence. 
Adding New Extensions 
If you add an extension to your system, you can probably use Copy Settings 
(#399) to copy the settings of an existing extension. If you wish to further adjust a 
new extension’s settings, see ‘‘Customizing Extensions’’. 
Swapping Extensions 
If a user changes location, but wants to keep the same extension number, you can 
make the change easily by changing the connection at the control unit. 
For example, if the users at extensions 29 and 32 switch offices, you can 
disconnect the modular plugs from those extension jacks in the control unit. Then 
reconnect the plug from 32 into extension jack 29 and the plug fro m 29 into 
extension jack 32. Now the users can take their respective phones to their new