Parameter Reference
81
X_CustomKeepAliveMsg Defines the custom message to be used when 
X_KeepAliveMsgType is custom. The value has the 
following format:
mtd=NOTIFY;event=<whatever>;user=<anyone>
Where 
• NOTIFY can be replaced by any other SIP method, such 
as PING 
• event is optional and is only applicable if method is 
NOTIFY. If event isn’t specified, the 'keep-alive' event is 
used with NOTIFY
• user is optional. If not speciifed, the request-uri won’t 
have a user ID, and the TO header field uses the same 
user ID as the FROM header, which is the local account 
user ID. If user is specified, it’s used as the user ID in the 
Request-URI and TO header.
SIP messages for keep-alive are sent only once without 
retransmission. Responses to the SIP messages are 
ignored by the handset.
None
X_UserAgentPort UDP port where the handset sends and listens for SIP 
messages.
5060 (n=1)
5061 (n=2)
5062 (n=3)
5063 (n=4)
5064 (n=5)
5065 (n=6)
5066 (n=7)
5067 (n=8)
X_UserAgentPorts A comma-separated list of as many as 10 alternative user 
agent ports to use when there is no response received from 
the SIP Registrar.
None
DirectoryNumber Directory number associated with this service.  None
X_DefaultRing Call waiting tone (as specified in the Ring Profiles) to play 
when there is a second incoming call. 
1
X_AcceptResync Control whether to accept a SIP NOTIFY request with 
event=resync to trigger a reboot of the handset so it can 
download new firmware or configuration upon boot up. 
Choice of:
• no (don’t accept resync trigger)
• yes with authentication (accept after challenging 
the sender)
• yes without authentication
 (accept without 
challenging the sender)
yes without 
authenticati
on
SPn Service — Debug Options (VoiceService.1.VoiceProfile.1.Line.n.), n = 1 - 8
SPn Services (n = 1, 2, 3, 4, 5, 6, 7, 8) Settings
Parameter Description Default Setting