Broadband and VOIP settings Contact Energy Broadband

Hello All.

I have found a error in the network set up which I have corrected and so here is the amended text:

How I Configured a FritzBox 7490 to Work With Contact Broadband and VOIP

Version 2

Overview

I am a novice when it comes to understanding modems and routers, so I make no claims that this is the best or even complete set up procedure or configuration and I take no responsibility for any outcomes from using this information. Please advise if I have missed essential or helpful settings.

I have an NF18ACV, supplied by Contact Broadband, as my primary modem-router. It is connected to the fibre network by a LAN cable running from the ONT to the WAN socket.
A LAN cable runs from the “Ethernet 4” socket (could be any of the Ethernet sockets on the NF18ACV) to “LAN 1” on the FritzBox 7490 (it must be onto LAN 1).
A wire-pair telephone cable runs from “FON 1” on the 7490 to a Uniden cordless phone base station.
A Panasonic DECT 6.0 phone is configured on “DECT 1” of the integrated DECT base station on the 7490.
All LAN (Ethernet) connections are run via the 7490.
All WiFi on the NF18ACV is switched off, so all the WiFi connections, in use, are via the 7490.
The NF18ACV is configured as supplied by Contact Broadband, with one exception. I was getting a lot of System logs with RADVD errors, so I switched off RADVD.

Requirements

The Contact Broadband and Voice (VOIP) connection and authentication details for the Internet and VOIP are required. Contact was adamant that VOIP was only available via their modem (NF18ACV) so I did not ask them for the information. The NF18ACV’s interface provides the Voice connection details but not the password. I discovered a Geek Zone post that described how to use the “Telnet” utility to interrogate the NF18ACV for the password. Pity that does not work for the FritzBox 7490 as FritzOS versions since 2020 no longer support Telnet.

On Geek Zone Forums, find Post #143067 for how to do this on a PC. If you are running a Mac like me, open the Terminal app and do this:

Last login: Fri Aug 20 16:42:47 on ttys000

Your Name-Mac:~ Your Name$ [type command “login”, then “Enter”]

Password: [enter your password, then “Enter”]

Last login: Fri Aug 20 16:47:16 on ttys000

[Your Name]-Mac:~ [Your Name]$ [type “telnet 192.168.20.1”then enter]

Trying 192.168.20.1...

Connected to 192.168.20.1.

Escape character is '^]'.

NF18ACV

Password: [type password for router access, then “Enter”]

> [type “dumpsysinfo”, press Enter]

I just highlighted the whole report dump and pasted it into a text file, then used the “TextEdit” app “Find” option to look for “<AuthPassword>”. You might find more than one, so some trial and error might be needed.

<SIP>

<AuthUserName>643xxxxxxx</AuthUserName>

<AuthPassword>eW646b4yDGf</AuthPassword> (NB: This password is not real)

<CidName>643xxxxxxx </CidName>

<CidNumber>643xxxxxxx </CidNumber>

<AuthUserName> is your telephone number preceded by the country code and area code (sans leading zero). In my case that is 64 for New Zealand and 3 for Dunedin. Note down the password.

Internet Configuration

Save a backup of the 7490 settings.
I suggest that you go to “WiFi – WiFi Network”, on the 7490, and ensure that the SSIDs for 2.4GHz and 5GHz bands are set to two different names and toggle on the associated activation. This makes it easy to re-connect with the 7490 once some changes are made further down.
Go to “Internet - “Account Information” – Internet Connection” and make the following entries:
1. Internet Service Provider: Enter “Devoli”.
2. Connect via: “Connection to an external modem or router”.
3. Operating mode: “Share existing Internet connection in the network (Mesh Wi-Fi / IP client mode)”.
4. Connection settings: IP Settings “Obtain the IP address automatically (DHCP), with the Search Domain name from the NF18ACV as the DHCP host name. In my case that is “home”.
5. Click on “Apply”. (N.B.: The 7490 will stop using its own allocated IP addresses and use ones from the DHCP on the NF18ACV. Consequently access to the 7490 will stop until you reconnect using its new IP address).
6. Go to “Internet - “Account Information” – “DNS Server” and select “Use DNSv4 servers assigned by...”. (I left the “IPv6”, “LISP” and “AVM Services” blank at this stage).
7. Click on “Apply”.

Network Configuration

Go to “Home Network – Network – Network Settings”, configure as follows:
1. Mode in the Home Network: Select “IP Client and the option “via LAN”.
2. Scroll down to and click on “Change connection settings”. Go to LAN Settings” and set all to “Power Mode”.
3. Scroll down to “Access Settings in the Home Network”.
4. Select “Allow access for applications” and “Transmit status information over UPnP”.
5. Ignore “Static Routing Table” and click on “Apply”.
Go to “Home Network – Network – Mesh Settings” and configure as follows:
1. Changing the FRITZ!Box Operating Mode: Tick “FRITZ!Box as a Mesh Repeater”, followed by “This FRITZ!Box is a network device (IP Client)...” and select “via LAN”. (Do not choose “via Wi-Fi”, because that mode is very slow).
2. Click on “Apply”.

VOIP (Telephony) Configuration

Open the web page of your NetComm NF18ACV modem and go to the “Voice” menu option then to SIP Basic Setting to see the appropriate settings.
Open the web page of your FritzBox 7490 router; go to “Telephony” - “Telephone Numbers” menu option and click on “New Telephone Number”. This takes you to the “Edit Telephone Number” section.
Under “Account information” tick “Use internet telephone number” then choose “FRITZ!Box in the Home Network”.
Under “Telephone number for registration”, add your telephone number preceded by the country code (64) and then your Area Code, without the leading zero, for example “6496871520” for an Auckland number.
Under “Internal telephone number in the FRITZ!Box” and contrary to the FritzBox instructions, include the Country and Area codes, for example “6496871520”. (I found it did weird things if I followed the FritzBox instructions).
“Display name” can be left blank.
Scroll down to the next section. There are four pieces of information to transfer to this FritzBox 7490 page, 3 from the NF18ACV page and the fourth from the Telnet derived configuration list:
1. “Username” equates to “Authentication name” and is your telephone number prefixed with the Country and Area codes as above.
2. “Password” equates to “Password” and the value is found in the Telnet text file as in “<AuthPassword>xxxxxxxxxxxx=</AuthPassword>
3. “Registrar” equates to “SIP Registrar”. Enter “voice.vibecom.co.nz”.
4. “Proxy server” equates to “SIP Proxy”, and is also “voice.vibecom.co.nz”.
5. Leave “STUN Server” blank.
Scroll down to “Additional Settings” - “Additional Settings for the Telephone Number”.
1. Set “DMTF transmission to “Automatic”.
Scroll down to “Additional Settings for the Connection”:
1. Tick “Use telephone number...”.
2. Tick “Always register via...”.
3. Select “IPv4 and IPv6, IPv4 preferred”.
4. Set “Transport protocol” to “UDP” while leaving “...encrypted telephony via SRTP” un-ticked.
5. Set “Media protocol” to “RTP/AVP and RTP/SAVP”.
Click on “OK”.
Return to “Telephone Numbers” and click on “Line Settings”.
“Location Information”:
1. Set “Country” to “New Zealand.
2. For “Country code”, enter “00”, then “64”.
3. For “Area code”, enter “00”, then your area code.
Leave, both “Landline” and “Substitute Connection, un-ticked.
The “Outgoing Telephone Number” field should have picked up the full telephone number, including the Country and Area codes for example “6496871520”.
Tick both settings in “Security”.
Scroll down and click on “Changing the settings”.
Tick “Keep port sharing...” and select 30 sec as the value.
Select “...DSL/WAN, tick “VLAN...”, set “VLAN ID” to 10, “PBit” to zero and un-tick “PVC”.
Click on “Apply”.
While there are dialling rules set in the NF18ACV, I did not set any in the “Telephony – Call Handling” settings.
Re-start the FritzBox 7490.
Configure and connect your telephones.
Login to your NF18ACV modem, go to the System Log and check the system event log for any issues. Hopefully there will be no warnings or other serious log items.
Back up the new configuration.

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