Aastra SIP 53I Administrator's Manual page 610

IP Phone Administrator Guide
Operational, Basic, and Advanced Parameters
Parameter –
alert priority
alert priority
(in Web UI)
Description
Format
Default Value
Range
Example
A-108
Aastra Web UI:
Configuration Files
When an "alert priority" keyword appears in the header of the INVITE
request, the configured Bellcore ring tone is applied to the IP phone.
Integer
0 Normal ringing
0 Normal ringing (default)
1 Bellcore-dr2
2 Bellcore-dr3
3 Bellcore-dr4
4 Bellcore-dr5
5 Silent
alert priority: 4
Basic Settings->Preferences->
Priority Alerting Settings
aastra.cfg, <mac>.cfg
41-001160-00, Release 2.1, Rev 04