Table 14 Account Network Settings; Table 15 Account Sip Settings - Grandstream Networks GAC2500 Administration Manual

Table 14 Account Network Settings

Outbound Proxy
Secondary Outbound Proxy
DNS Mode
NAT Traversal
Proxy-Require

Table 15 Account SIP Settings

SIP Registration
Unregister before new
registration
Register Expiration (m)
Wait Time Retry
Registration (s)
Local SIP Port
SUBSCRIBE for MWI
Firmware Version 1.0.1.34
IP address or Domain name of the Primary Outbound Proxy, Media
Gateway, or Session Border Controller. It's used by the phone for
Firewall or NAT penetration in different network environments. If a
symmetric NAT is detected, STUN will not work and ONLY an
Outbound Proxy can provide a solution.
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.
This parameter controls how the Search Appliance looks up IP
addresses for hostnames. There are three modes: A Record, SRV,
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".
This parameter configures whether the NAT traversal mechanism is
activated. Users could select the mechanism from NAT NO, STUN,
Keep-alive, UPnP, Auto or VPN.
If set to "STUN" and STUN server is configured, the phone will route
according to the STUN server. If NAT type is Full Cone, Restricted
Cone 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. "STUN" cannot be used if the
detected NAT is symmetric NAT. Set this to "VPN" if OpenVPN is used.
The default setting is "Keep-alive".
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.
Selects whether or not the phone will send SIP Register messages to the
proxy/server. The default setting is "Yes".
If set to "Yes", the SIP user's registration information will be cleared when
the phone reboots. The SIP Contact header will contain "*" to notify the
server to unbind the connection. The default setting is "No".
Specifies the frequency (in minutes) in which the phone refreshes its
registration with the specified registrar. The default setting is 60. The
maximum value is 64800 minutes (about 45 days), the minimum value is
1 day.
The amount of time (in seconds) in which the phone will retry the
registration process in the event that is failed. The valid range is 0-.
Defines the local SIP port used to listen and transmit. The default setting
is 5060 for Account 1, 5062 for Account 2, 5064 for Account 3, 5066 for
Account 4, 5068 for Account 5, and 5070 for Account 6.
When set to "Yes", a SUBSCRIBE for Message Waiting Indication will be
sent periodically. The
synchronized MWI. The default setting is "No".
GAC2500 Administration Guide
phone supports synchronized and non-
Page 21 of 54