AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN User Manual

Registration Renewal
Timer

sip registration renewal timer The threshold value, in seconds, prior to expiration, that the

phone renews registrations. The phone will automatically
send registration renewals half-way through the registration
period, unless half-way is more than the threshold value.

For example, if the threshold value is set to 60 seconds and
if the registration period is 600 seconds, the renewal
REGISTER message will be sent 60 seconds prior to the
expiration, as half-way (600/2) > 60. If the registration
period was 100 seconds, then the renewal would be sent at
the half-way point as (100/2) < 60.

For more information, see Chapter 4,

BLF Subscription Period

sip blf subscription period

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.

For more information, see Chapter 4,

ACD Subscription Period

sip acd subscription period

Specifies the time period, in seconds, that the IP phone
resubscribes the Automatic Call Distribution (ACD)
subscription service after a software/firmware upgrade or
after a reboot of the IP phone.

For more information, see Chapter 4,

BLA Subscription Period

sip bla subscription period

Specifies the amount of time, in seconds, that the phone

waits to receive a BLA subscribe message from the server.

If you specify zero (0), the phone uses the value specified

for the BLA expiration in the subscribe message received

from the server. If no value is specified, the phone uses the

default value of 300 seconds.

For more information, see Chapter 4,