How to use Vodafone (DE) VoIP over VDSL?

Software SW help
1

I tried to search the internet, but I could not figure out what exactly to do, to get VoIP passed trough the Turris Omnia Router.

What I figured out:

  1. I need to create a new interface on the router
  2. I need to change firewall settings

I already stuck with the interface. Of what type the protocol must be?

Additional questions:

  1. What do I need to set in the firewall settings?
  2. How do I pass the SIP Trunk trough to the VoIP server (aka Asterisk)?

My Modem is an ALL4781-VDSL2-SFP module.

2

How do you connect your phones - do you have a Fritzbox attached to one of TO’s ports?

3

I have no other devices like a FRITZ!Box attached, I would just register the phones in a SIP Client attached to LAN/WLAN and later install a VoIP Server.

4

As far as I understand there is nothing required for the router, you just need to configure your SIP client/VoIP base station correctly to talk to vodafone’s voice systems.

Why do you think you need a different interface or firewall rules?

I think you don’t, you simply configure your asterisk to talk to the Vodafone SIP servers…

1 Like
5

Here’s a post about using Vodaphone (UK). It might be similar. You probably need to set up a new VLAN:

6

Vodafone in Germany is switching its DSL products over to bitstream access from deutsche Telekom (L2 Bitstream mostly). In that constellation VF needs to use the same VLAN7 as DT itself and all of its other resellers. I see little chance that VF negotiated additional VLAN access for VoIP. VF UK and VF DE are not operating in the same circumstances so I would guess the voice part to be relatively easy.
However with my ISP (O2, also via Telekom bitstream access) I had to configure my ISP’s DNS servers in my VoIP base station, as my omnia configured as resolver did not resolve O2’s SIP servers at all.

7

All right, I made it. I do not need a separat VLAN, everything works with these settings:

Authentication Username: Phone number with local code
Authentication Password: Vodafone will tell you
Oubound Proxy: <local code>.sip.arcor.de:5060 (5060 is the port number)
8

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