try parnum 11.....
10 PARNUM=11 Maximum parking time for call parked by extension
10.1 FORMAT
PARNUM=11, PARVAL=D 1 D 2 D 3 D 4 D 5
0 - 32768 Time in seconds. Recommended minimum value is 10 seconds.
10.2 FUNCTION
The parameter states the maximum parking time for a call parked by an analogue extension.
An extension can park an answered call by pressing the R-button and replacing the handset. The extension can then pick up the call from any other extension by using procedure for this feature.
On time out the extension who parked the call is recalled.
10.3 EXAMPLE
The extension is to be recalled from the parked call after 30 seconds.
PARNUM=11,PARVAL=30
Good luck,
Dave Strang