WEB USER INTERFACE
PHONE USER INTERFACE
<user_expiry idx="INDEX" perm="PERMISSIONFLAG">VALIDVALUE</user_expiry>
The proposed expiry time of the registration in seconds for line x. Upon expiration of the registration, the phone will send a fresh re-registration request.
V6: 60, 600, 3600, 7200, 28800, 86400
Since V7: any value
Please consider that the phone will ignore any expiry received from the registrar with value less than 15 seconds. In such case the phone will take as expiry value 600 seconds instead
3600 (one hour)