Aastra Telecom SISIP 57I CT - Manual (Page 447)

Operational, Basic, and Advanced Parameters
41-001160-00, Rev 01 Release 2.0 A-105
Configuration Parameters
Appendix A BLF Subscription Period Settings
Parameter –
sip blf subscription period
BLF Subscription Period
(in Web UI)
Aastra Web UI Advanced Settings->Global SIP
->Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
Description Specifies the time period, in seconds, that the IP phone resubscribes the
BLF subscription service after a software/firmware upgrade or after a
reboot of the IP phone.
Format Integer
Default Value 3600
Range 120 (2 minutes minimum value)
Example sip blf subscription period: 180