Grandstream Networks DP752 Administration Manual page 52

Do Not Escape '#'
Replaces "#" by "%23" when sending SIP packets. Default is No.
as %23 in SIP URI
Disable Multiple m
Sends only one m line in SDP, regardless of how many m fields are in the incoming
Line in SDP
SDP. Default is No.
Use Privacy Header Controls whether the Privacy Header will be present in SIP INVITE message.
Default is Default.
Use P-Preferred-
Controls whether PPI Header will be present in SIP INVITE message. Default is
Identity Header
Default.
Ignore Alert-Info
This option is used to configure default ringtone. If set to "Yes", configured default
Header
ringtone will be played. The default setting is No.
Session Timer
Enable Session Enables/Disables the Session Timer Support. Default is Yes.
Timer
Session Expiration Enables periodic refresh of SIP session via a SIP request (UPDATE, or re-INVITE).
When the session interval expires and there is no refresh via an UPDATE or re-
INVITE message, the session will be terminated. Session Expiration is the time at
which the session is considered timed out, if no successful session refresh
transaction occurs beforehand. Default is 180 seconds.
Min-SE Defines Minimum session expiration (in seconds).
Default is 90 seconds.
Caller Request Uses session timer when making outbound calls if remote party supports it.
Timer Default is No.
Callee Request Uses session timer when receiving inbound calls with session timer request.
Timer Default is No.
Force Timer Uses session timer even if the remote party does not support this feature. Selecting
"No" will enable session timer only when the remote party supports it.
Default is No.
To turn off Session Timer, select "No" for Caller Request Timer, Callee Request
Timer, and Force Timer.
UAC Specify Specifies which end will act as refresher for outgoing calls:
Refresher
Default is Omit
•
UAC: The base station acts as the refresher.
•
UAS: Callee or proxy server act as the refresher.
DP752/DP730/DP722 Administration Guide
Version 1.0.11.4
P a g e | 52