| GENERAL INFORMATION |
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 The Grandstream GXV3275 is a full-featured IP phone built on the Android operating system. This IP phone features a large capacitive touch screen, support for up to 6 SIP accounts, PoE (Power Over Ethernet), full access to the Google Play Store, and HD Audio.
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| RESOURCES |
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Websites:
Grandstream Homepage
Grandstream GXV3275 product page
Help / Support:
Grandstream GXV3275 resource page
Grandstream GXV3275 product manual
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| Configuring the GXV3275 |
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The setup guide below is based the GXV3275 running on firmware revision 1.0.3.22; if you are running a different software version some menus/settings may be different. These instructions are also based on using the GXV3275 in its factory default configuration, which obtains a dynamic IP address automatically from your router using DHCP. For information on configuring your GXV3275 with a static IP address, please refer to the GXV3275 user manual.
In this guide we will go through configuring the GXV3275 in order to register to the Callcentric servers so that you will be able to place and receive calls using your Callcentric account. Before moving forward please ensure that you have properly added the device to your network by connecting it to your router or gateway.
We recommend that you read each step through in its entirety before performing the action(s) indicated within the step.
Note: Although this device supports many advanced features/options; this guide will only detail the specific settings which are required to establish basic connectivity between your GXP1625 and our service. If you need additional assistance with any specific issue please let us know.
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| STEP 1 |
Logging into your device |
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Log into the GXV3275's administrative interface by using the supplied default username (admin) and default password (admin).
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| STEP 2 |
Configuring your Callcentric account |
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From the top menu bar, please select the Accounts option. After doing so, select the Account 1 option that is located on the sub-menu bar at the top of the screen. You should now be in the General Settings configuration page of your IP phone. Please use the settings detailed in the screen captures below. After you have finished entering these settings, click on the Save button to apply/save your settings:
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| Setting | Value |
| Account Active | checked/enabled |
| Account Name | callcentric |
| SIP Server | sip.callcentric.net |
| SIP User ID | This is either the default extension 1777MYCCID OR 1777MYCCIDEXT, where 1777MYCCID is the 1777 number assigned to you by Callcentric and EXT is the three digit extension you are trying to register this UA to.
For example: 17770001234101 would register to extension 101 on account 17770001234.
You cannot register to your account using only the extension number. |
| SIP Authenticate ID | This is either the default extension 1777MYCCID OR 1777MYCCIDEXT, where 1777MYCCID is the 1777 number assigned to you by Callcentric and EXT is the three digit extension you are trying to register this UA to.
For example: 17770001234101 would register to extension 101 on account 17770001234.
You cannot register to your account using only the extension number. |
| SIP Authenticate Password | Enter your extension SIP Password here. Your extension SIP password is the password you created for the extension you are trying to use. You may edit the SIP password you wish to use in by logging into your My Callcentric account and clicking on the Extension menu link and then modifying the appropriate extension. |
| Voice Mail UserID | *123 |
| Name | You may enter any value for this option. |
Next, locate the Network Settings menu option on the side menu bar. On this page, please use the settings detailed in the screen captures below. After you have finished entering these settings, click on the Save button to apply/save your settings:
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| Setting | Value |
| Outbound Proxy | sip.callcentric.net |
| DNS Mode | SRV |
| NAT Traversal | keep-alive |
After completing the steps detailed above, locate the SIP Settings menu option on the side menu bar. On this page, please use the settings detailed in the screen captures below. After you have finished entering these settings, click on the Save button to apply/save your settings:
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| Setting | Value |
| Check SIP User ID for Incoming INVITE | checked/enabled |
| Remove OBP from route | checked/enabled |
Next, locate the Codec Settings menu option on the side menu bar. On this page, please use the settings detailed in the screen captures below. After you have finished entering these settings, click on the Save button to apply/save your settings:
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| Setting | Value |
| DTMF | In audio
RFC2833 |
| Preferred Vocoder | PCMU
G729A/B |
Finally, locate the Call Settings menu option on the side menu bar. On this page, please use the settings detailed in the screen captures below. After you have finished entering these settings, click on the Save button to apply/save your settings:
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| Setting | Value |
| Start Video Automatically | disabled/unchecked |
| Dialplan | {[x*]+} |
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| STEP 3 |
Checking Registration Status |
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To ensure that your GXV3275 has successfully registered to our service click on the Status option on the top menu bar. Locate the Account Status section; you should see that the Account you just configured is now Registered.
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| STEP 4 |
That's it! You can now make a phone call. |
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You can make a test call to 17771234567, or if you are signed up for one of Callcentric's rate plans you
can place a call to a traditional landline or mobile phone by dialing either:
1 + the area code and number for calls to the US
Or
011 + the country code, area code, and number for calls worldwide
(you may also use 00 instead of 011).
To test inbound calls from Callcentric to your GXP1450 installation, follow the directions listed in this FAQ.
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