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| service provider. |
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| SIP User ID |
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| User account information provided by the VoIP service provider; normally |
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| similar to a telephone number or an actual telephone number. |
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| Authenticate ID |
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| The authenticate ID for the SIP user. It can differ or be the same as the SIP |
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| user ID. |
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| Authenticate password |
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| The password that the GXV uses to authenticate with the ITSP (SIP) server. |
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| After it is saved, this will appear as blank for security reasons. The |
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| maximum length is 25 characters. |
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| Voice Mail User ID |
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| When this is configured, the user can dial to the voicemail server using the |
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| MESSAGE button. This ID is normally the feature code for Voice Mail. |
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| Name |
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| The Caller ID that will be displayed for the account. |
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| Tel URI |
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| The default setting is “Disable”. If the Video phone has an assigned PSTN |
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| number, this field should be set to “Enable”. If “User=Phone” is set, a |
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| “User=Phone” parameter will be attached to the “From header” in the SIP |
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| request to indicate the E.164 number. |
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| Account/Network Settings |
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| Outbound Proxy |
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| IP address or Domain name of the Outbound Proxy, or Media Gateway, or |
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| Session Border Controller. Used by the GXV3175 for firewall or NAT |
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| penetration in different network environments. If a symmetric NAT is |
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| detected, STUN will not work and ONLY an Outbound Proxy will work. |
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| DNS Mode |
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| The default is set to A Record. If the user wishes to locate the server by DNS |
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| SRV, the user may select SRV or NATPTR/SRV. |
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| NAT Traversal |
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| This setting decides whether the NAT traversal mechanism is activated. If it |
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| is set to “STUN” and STUN server is configured, the GXV3175 will route |
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| according the STUN server. In this mode, the STUN client embedded in the |
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| phone will communicate with the appointed STUN server to examine which |
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| type of Firewall/NAT setting is employed. If the type of NAT detected is Full |
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| Cone, Restricted Cone or |
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| public IP addresses and port in all the SIP and SDP messages. |
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| If the “NAT Traversal” is configured to be |
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| an empty SDP packet (without payload data) to the SIP server once in 20 |
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| seconds to keep the NAT port open. |
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| If VPN is used, users should select “VPN” for NAT Traversal. |
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| Users could also set “Auto” or “UPnP” according to the network |
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| configuration. |
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| If an outbound proxy server is used, please configure this to be “NAT NO”. |
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| Grandstream Networks, Inc. | GXV3175 USER MANUAL | Page 49 of 119 |
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| FIRMWARE VERSION 1.0.0.32 | Updated : 12/2010 |
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