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This guide describes basic steps for configuration of peer to peer communication between 2N® Helios IP intercom Intercom and Grandstream GXV3175v2 IP phone. There is also a possibility to register both these devices to the IP PBX (SIP proxy server) and use internal dialling plan for calling between each other but it is not described in this FAQ. Grandstream GXV3175v2 is IP video phone with 7 touch screen colour LCD, integrated Wi-Fi and supporting many different features, audio codecs and video codecs (H.264, H.263 and H.263+). Very useful feature in GXV3175v2 is video preview – it means that you can see the video before you pick up the call. It is the easiest way how you can check who is standing in front of your door before you start to talk with him.

Note:  Grandstream GXV3175v2 IP video phone is placed in the same LAN (local network) as intercom. IP address of GXV3175v2 is and IP address of 2N® Helios IP intercom Intercom is These IP addresses and names are used only such as example – please change it according to your names and network plan.

How to set 2N®





Settings of 2N® Helios IP intercom Intercom is very easy. First of all create a new user and assign him a phone number – we will make SIP direct call (peer-to-peer call) to GXV3175v2 in our scenario. Therefore the number is set in the format: sip:IP_address (or sip:x@IP_address). See the picture below for more information.


In the next step we will move to the section "Services – Phone – SIP" and fill in the IP address of 2N® Helios IP phone Intercom into the “Domain” field.


Finally we will modify the settings of Video codecs (section "Services – Phone – Video"). Set there the highest possible resolution (VGA or HD that is available only for Helios 2N® IP Verso) and also modify the bitrate and framerate parameters if needed. Consider the bandwidth consumption during the settings.



How to set Grandstream GXV3175v2 IP phone?

The easiest way how to set up this IP phone is via web interface but you can also use touch screen of this phone and set all necessary parameters this way. Complete setting via web interface is described below.

In the first step you have to enable "Account 1" and set all necessary information for this account in the "General" section. We will set peer-to-peer connection between 2N® Helios IP intercom Intercom and GXV3175v2 therefore set the IP address of 2N® Helios IP Intercom into the "SIP Server" field as shown below. Authentication ID and password aren´t used in this case.