Grandstream Wave - Manual (Page 55)

Firmware Version 1.0.1.21 Grandstream Wave User Guide Page 54 of 64
Caller
Request
Timer If set to "Yes" and the remote party supports session timers, the phone will use a
session timer when it makes outbound calls. The default setting is "No".
Callee
Request
Timer If set to "Yes" and the remote party supports session timers, the phone will use a
session timer when it receives inbound calls. The default setting is "No".
Force Timer If Force Timer is set to "Yes", the phone will use the session timer even if the remote
party does not support this feature. If Force Timer is set to "No", the phone will enable
the session timer only when the remote party supports this feature. To turn off the
session timer, set Caller Request Timer, Callee Request Time and Force Timer all to
"No".
Table 7: Account Settings—Network Settings Parameters
Proxy-
Require A SIP Extension to notify the SIP server that the
phone is behind a NAT/Firewall. Do not configure this
parameter unless this feature is supported on the SIP
server.
Outbound
Proxy IP address or Domain name of the Primary Outbound
Proxy, Media Gateway, or Session Border Controller.
Secondary
Outbound
Proxy IP address or Domain name of the Secondary
Outbound Proxy, Media Gateway, or Session Border
Controller. Secondary outbound proxy will be used
when the primary outbound proxy fails.
NAT Traversal This configuration is to enable or disable the NAT traversal mechanism. The default
setting is "Keep-alive".

If set to "STUN" and STUN server is configured, the phone will route according
to the STUN server; If NAT type is Full Cone, Address-RestrictedCone or Port-
Restricted Cone, the phone will try to use public IP addresses and port number
in all the SIP&SDP messages.
 The phone will send empty SDP packet to the SIP server periodically to keep
the NAT port open if it is configured to be "Keep-alive".
 Configure this to be "NAT NO" if an outbound proxy is used.
 Configure this to be "UPnP" if the router supports UPnP.
 If set to "Auto", the phone will try to use all traversal methods mentioned above
until find the available one.
DNS Mode This parameter controls how the search appliance looks up IP addresses for
hostnames. There are three modes: A Record, SRV, and NATPTR/SRV. The
default setting is "A Record". If the user wishes to locate the server by DNS SRV,
the user may select "SRV" or "NATPTR/SRV".
Table 8:Account Settings—Codec Settings Parameters