AVM

From Pbxnsip Wiki

1 Introduction
2 FritzBox Setup
3 PBX Setup
4 Thanks

Introduction

AVM offers a product called the "FritzBox" that is a very popular product in Germany (see http://de.wikipedia.org/wiki/Fritz!Box and http://en.wikipedia.org/wiki/FRITZ!Box). This devices includes a ISDN connection and a DSP connection; some of the devices even have a cordless phone connection. Thanks to a large installed base, the ISDN gateway works very well in the European environment.

The FritzBox also supports SIP. The original intention was to register the device to a SIP service provider; however the latest version now also allows that a SIP phone registers with the FritzBox. pbxnsip users can use this feature to use the FritzBox as a SIP to PSTN gateway.

The FritzBox is a very interesting alternative to large ISDN gateways just because it is so widely available and fills the gap in the low-density ISDN gateway market with just one BRI channel. This is very interesting in offices that just need two simultaneous calls and which already have a server running in the office, so that the PBX process can run on that server and use the FritzBox as PSTN gateway.

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FritzBox Setup

You need a new software load for the FritzBox. The version number must be higher than 54.04.69. See http://www.avm.de/de/Service/Service-Portale/Service-Portal/Labor/labor.php for the latest available images.

In order to set up the SIP phone on the FritzBox select "Einstellung -> Telefoniegeräte -> neues IP/WLAN Telefon" (in German). The account number is assigned by the FritzBox and cannot be changed; however that does not matter because the PBX will just use this number for registration purposes. Note that you can even register your PBX via WLAN.

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PBX Setup

In order to use the FritzBox, you need to create a Registration trunk on the PBX. Register it with the account provided by the FritzBox and make sure that you are using the outbound proxy (e.g. "sip:192.168.0.1"). The domain should be set to "fritz.box". You should not use the Remote Party Indication (set it to "No Indication").