Welltech LP-389 v.1.06 Administrator Guide - Manual (Page 12)

VOIP Parameters Setting
SIP Parameters:
VOIP Setting > SIP
Parameter Description:
z Session Timer: Enable session timer or not (RFC 4028)
z Session Expires (sec): This is the setting of initial session timer expires
time according to rfc4028 - Session Timers in the Session Initiation
Protocol.
z Session Refresher: Who will send dialog keep alive message (re-invite or
update).
- UAC: Caller will do the refresh
- UAS: Called will do refresh
• Min SE: The minimum session timer allowed when receiving a call with
session timer value according to RFC 4028.
z Session Timer Refresh Method: The session timer refresh method
z PRACK: Enable provisioning ACK or not (RFC 3262)
- None: Disable PARCK
- Supported: When select this mode, 100rel will be added to the
support list. It indicates LP389 can support the PRACK but not
mandatory.
- Require: PRACK is mandatory required.
z SIP Local Port: The SIP local service port (default is 8080)
z SIP Qos Type: Quality of Service Type for SIP signaling
- None: Not using QOS Tag not enable QOS.
- DiffServ: Differentiated Services Value
- TOS: Type of Service
z DSCP Value: Differentiated Service Value
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