Tls

SIP URI Scheme when using

Use Actual Ephemeral Port in Contact with TCP/TLS

Check Domain Certificates

Remove OBP from route

Validate Incoming Messages

Support SIP Instance ID

NAT Traversal

SUBSCRIBE for MWI

SUBSCRIBE for Registration

Feature Key Synchronization

Proxy-Require

Voice Mail UserID

choose from TCP, UDP and TLS.

Specifies if "sip:" or "sips:" will be used when TLS/TCP is selected for SIP Transport. The default setting is "sips:".

Defines whether the actual ephemeral port in contact with TCP/TLS will be used or not. This is used when TLS/TCP is selected for SIP Transfer. The default setting is "No".

Defines whether the domain certificates will be checked or not when TLS/TCP is used for SIP Transport. The default setting is "No".

Configures to remove outbound proxy from route. This is used for the SIP Extension to notify the SIP server that the device is behind a NAT/Firewall.

Defines whether the incoming messages will be validated or not. The default setting is "No".

Defines whether SIP Instance ID is supported or not. The default setting is "Yes".

This parameter configures whether the NAT traversal mechanism is activated. Users could select the mechanism from 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 "No" if an outbound proxy is used. "STUN" cannot be used if the detected NAT is symmetric NAT.

When set to "Yes", a SUBSCRIBE for Message Waiting Indication will be sent periodically. The phone supports synchronized and non-synchronized MWI. The default setting is "No".

When set to "Yes", a SUBSCRIBE for Registration will be sent out periodically. The default setting is "No".

This feature is used for Broadsoft call feature synchronization. When it's enabled, DND and Call Forward features can be synchronized with Broadsoft server. The default setting is "Disabled".

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.

Allows you to access voice messages by pressing the MESSAGE button

FIRMWARE VERSION 1.0.4.23

GXP1100/GXP1105 USER MANUAL

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