Polycom SIP 2.2.0 Manuale Utente

Administrator’s Guide SoundPoint IP / SoundStation IP 

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call.offeringTimeOut

positive 
integer

60

Time in seconds to allow an incoming call to ring 
before dropping the call, 0=infinite.

 on page 

call.ringBackTimeOut

positive 
integer

60

Time in seconds to allow an outgoing call to 
remain in the ringback state before dropping the 
call, 0=infinite.

call.dialtoneTimeOut

Null, positive 
integer

60

Time in seconds to allow the dialtone to be 
played before dropping the call. 

If set to 0, the call is not dropped.

If set to Null, call dropped after 60 seconds.

call.lastCallReturnString

string of 
maximum 
length 32

*69

The string sent to the server when the user 
selects the “last call return” action.

call.callsPerLineKey

1 to 24 OR

1 to 8

24 OR

8

For the SoundPoint IP 600, 601, and 650, the 
permitted range is 1 to 24 and the default is 24. 
For all other phones the permitted range is 1 to 8 
and the default is 8.

This is the number of calls that may be active or 
on hold per line key on the phone.

Note that this may be overridden by the 
per-registration attribute of 
reg.x.callsPerLineKey

. Refer to 

 on page 

call.stickyAutoLineSeize

Null, 0, 1

0

If set to 1, makes the phone use "sticky" line 
seize behavior. This will help with features that 
need a second call object to work with. The 
phone will attempt to initiate a new outgoing call 
on the same SIP line that is currently in focus on 
the LCD (this was the behavior in SIP 1.6.5).

If set to 0 or Null, the feature is disabled (this was 
the behavior in SIP 1.6.6).