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| RTCP. For video, channel 0 will use port_value+2 for RTP and port_value+3 |
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| for its RTCP; channel 1 will use port_value+6 for RTP and port_value+7 for |
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| RTCP. The default value is 5004. |
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| Use Random Port |
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| When set to YES, this parameter will force random generation of both the |
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| local SIP and RTP ports. This is usually necessary when multiple |
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| (This parameter must be set to NO before Direct IP Calling will work) |
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| This parameter specifies how often the |
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| packet to the SIP server in order to keep the “ping hole” on the NAT router to |
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| open. The default setting is 20 seconds. |
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| STUN Server |
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| The IP address or Domain name of the STUN server. STUN resolution |
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| results are displayed in the STATUS page | of the Web UI. Only |
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| Default STUN server: stun.ipvideotalk.com |
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| Use NAT IP |
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| The NAT IP address used in SIP/SDP messages. This field is blank at the |
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| default settings. This should ONLY be used if your ITSP requires it. |
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| SSL Certificate |
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| This defines the SSL certificate needed to access certain websites. |
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| SSL Private Key |
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| This defines the SSL Private key. |
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| SSL Private key Password |
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| This defines the SSL private key password. |
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| Advanced Settings/Call Features |
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| Disable |
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| The default setting is No. If set to Yes, the call waiting feature will be |
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| disabled. |
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| Disable |
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| The default setting is No. If set to Yes, the call waiting tone will be disabled. |
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| Disable Direct IP Call |
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| The default setting is No. If set to Yes, Direct IP calling will be disabled. |
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| Offhook Auto Dial |
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| Configure a User ID/extension to dial automatically when the phone is taken |
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| offhook. By default, the phone will use the first account to dial out. |
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| Advanced Settings/Video Settings |
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| Enable Motion Detection |
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| The phone will exit idle/screensaver mode if motion is detected. The default |
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| setting is Yes. |
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| Video Frame rate |
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| The Default value is 15 frames/second. The video frame rate is adjustable |
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| based on network conditions. |
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| Increasing the frame rate will increase the amount of transferred data |
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| significantly therefore consuming more bandwidth. Lack of bandwidth will |
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| Grandstream Networks, Inc. | GXV3175 USER MANUAL | Page 40 of 119 |
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| FIRMWARE VERSION 1.0.0.32 | Updated : 12/2010 |
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