Aastra Telecom 9480i CT Series User Manual

Page of 1184
BLA Subscription Period
The phones include a SIP BLA subscription period parameter that allows an 
Administrator to set the amount of time, in seconds, of the BLA subscription 
period.
Reference
For more information about setting the BLA Subscription Period, see the section, 
 on 
Using a BLA Line on the IP Phone
If you have either a global or per-line BLA configuration, and you want to share a 
call on the line with a BLA group, you need to press the Hold button before 
sharing the call with the group. 
For example, if line 1 is configured for BLA, and you pick up a call on line 1, you 
must press the Hold button to share the call with the BLA group.
If you pick up a call on line 1 configured for BLA, and another call comes in on 
line 2, you can pick up line 2 without putting line 1 on hold.  The line 1 call will 
be on hold automatically; however it is on hold locally only.  The line 1 call 
cannot be shared with the BLA group.
Note: 
The Hold button must be pressed for a call on a BLA line to be 
shared with the BLA group.
Draft 1