Yealink T21PE2 - Page 421

Advanced Features
415
Note: It is not applicable to T19(P) E2/CP920 IP phones.
Permitted
Values
Integer from 30 to 2147483647
Default 1800
Web UI Account->Advanced->Subscribe Period(Seconds)
Parameter
account.X.blf.subscribe_event
[1]
<MAC>.cfg
Description
It configures the event of the BLF subscription.
Note: It is not applicable to T19(P) E2/CP920 IP phones.
Permitted
Values
0-dialog
1-presence
Default 0
Parameter
account.X.out_dialog_blf_enable
[1]
<MAC>.cfg
Description
It enables or disables the IP phone to handle NOTIFY messages out of the BLF dialog.
Note: It is not applicable to T19(P) E2/CP920 IP phones.
Permitted
Values
0-dialog
1-presence
Default 0
Web UI Account->Advanced->Out Dialog BLF
Parameter
account.X.blf.match_host.enable
[1]
<MAC>.cfg
Description
It enables or disables host match feature for BLF/BLF list feature.
Note: It is not applicable to T19(P) E2/CP920 IP phones.
Permitted
Values
0-Disabled
1-Enabled, the IP phone can only recognize the NOTIFY message whose host field is the same as the one
in the SUBSCRIBE message.
Default 0
Parameter sip.terminate_notify_sub_delay_time <y0000000000xx>.cfg
Description
It configures the interval (in seconds) for the IP phone to re-subscribe when it receives the NOTIFY mes-
sage with the subscription state of Terminated.
If it is set to 0, the phone will re-subscribe immediately when it receives the NOTIFY message with the sub-
scription state of Terminated.
Note: It is not applicable to T19(P) E2/CP920 IP phones.
Permitted
Values
Integer greater than 0
Default 0
Parameter sip.sub_refresh_random <y0000000000xx>.cfg
Description It enables or disables the IP phone to use the random renewal mechanism.