Tcp/Tls

Reregister Before

Expiration

Local SIP Port

SIP Registration Failure Retry Wait Time

SIP T1 Timeout

SIP T2 Interval

SIP Transport

SIP URI Scheme when using TLS

Use Actual Ephemeral Port in Contact with

Check Domain

Certificate

Remove OBP from Route

Validate Incoming Messages

Support SIP Instance ID

NAT Traversal

SUBSCRIBE for MWI

This parameter allows user to specify the time frequency (in minutes) that GXP1100/1105 refreshes its registration with the specified registrar. The default interval is 60 minutes. The maximum interval is 65,535 minutes (about 45 days).

This parameter allows user to specify the time frequency (in seconds) that GXP1100/1105 sends out a re-registration request before the Register Expiration. By default is 0 second.

This parameter defines the local SIP port used to listen and transmit. The default value for Account 1 is 5060.

Retry registration if the process failed. Default is 20 seconds.

RFC 3261 SIP T1 timer. Default is 0.5 second.

RFC 3261 SIP T2 timer. Default is 4 seconds.

Choose SIP Transport between UDP, TCP and TLS/TCP. Default is UDP.

When TLS/TCP is used (in “SIP Transport”), select “sip:” or “sips:” in this mode. Default is “sips:”.

Enable to use actual ephemeral port in contact with TCP/TLS. Default is “No”.

Enable to check the domain certificate. Default is “No”.

The SIP Extension notifies the SIP server that it is behind a NAT/firewall.

This configuration selects whether or not the incoming messages should be validated.

Selects whether or not SIP Instance ID is supported.

This parameter activates the NAT traversal mechanism. It has options: No, STUN, Keep-Alive, UPnP, Auto, VPN.

If selecting STUN and a STUN server is also specified, the phone performs according to the STUN client specification. Using this mode, the embedded STUN client detects if and what type of NAT/Firewall configuration is used. If the detected NAT is a Full Cone, Restricted Cone, or a Port-Restricted Cone, the phone will use its mapped public IP address and port in all of its SIP and SDP messages.

If selecting Keep-Alive with no specified STUN server, the GXP1100/1105 will periodically (every 20 seconds or so) send a blank UDP packet (with no payload data) to the SIP server to keep the “hole” on the NAT open.

Default is “No”. When set to “Yes” a SUBSCRIBE for Message Waiting Indication will be sent periodically.

Grandstream Networks, Inc.	GXP1100/1105 User Manual	Page 26 of 34
	Firmware version: 1.0.1.110	Last Updated: 01/2012

TCP/TLS

Firmware version: 1.0.1.110