Fritzbox and SIP VOIP phones

Please can someone tell me if the following is possible using either the Fritzbox 7590 or 7530 ?

I currently have FTTP with voip from an Altnet. I have two Yealink Desk phones however my provider only allows one SIP ID registration, so only one phone can be used.

I read that the Fritzbox is a PBX, does this mean that if I had either Frizbox I would register my providers details in the phone setup and then both phones could connect via their IP address to the Fritzbox?

I would not need to input the SIP details in each phone and they would just work as normal analogue phones or have I got this completely wrong?

I thought of the Fritzbox as I also have some old analogue phone that I could use and possibly add DECT phones as some time.

That can be done, and you are right with your assumptions

You set up your VoIP provider details on the Fritzbox (i,e, the FB registers with the provider), and then you add the IP phones as connected telephony devices:

See here for the full guide:
https://fritzhelp.avm.de/help/en/FRITZ-Box-7590-avme...
https://fritzhelp.avm.de/help/en/FRITZ-Box-7590-avme...
https://fritzhelp.avm.de/help/en/FRITZ-Box-7590-avme...

You can also connect up to six DECT phones (and ISDN and POTS phones as long as there are physical interfaces, 7530 only has one analogue port, 7590 has two analogue ports plus ISDN) and IP phones via WLAN (e.g. Fritz!Fon App on a smartphone).

Thanks for the information, this voip is a whole new world to me!

In reply to a post by F111:

Thanks for the information, this voip is a whole new world to me!

It's a whole new world for a lot of people, many of whom will not have much technical savvy, and already causing problems for more vulnerable people. I can see my 'work load' from the family increasing when it's rolled out to our area.

Standalone SIP VOIP is not being "rolled out", and is entirely optional (although has lots of benefits).

For the majority of people, they'll take whatever voice service their ISP provides, and the ISP will supply it pre-configured on the router.

This applies especially to BT customers: the voice service is entirely locked down inside the router, so you don't even have the option of using your own devices with it.

In reply to a post by candlerb:

Standalone SIP VOIP is not being "rolled out", and is entirely optional (although has lots of benefits).

For the majority of people, they'll take whatever voice service their ISP provides, and the ISP will supply it pre-configured on the router.

This applies especially to BT customers: the voice service is entirely locked down inside the router, so you don't even have the option of using your own devices with it.

The MSM already have stories of the problems with ISP provided voice services

What's MSM?

Of course, at any point in time, there will be some users with a problem.

However, the vast majority of people on BT digital voice have no problems. I also don't see a large number of complaints from Sky, who have been doing digital voice for years, or Zen.

A quick scan shows stories across the spectrum from the Daily Fail to the Guardian,

In reply to a post by candlerb:

What's MSM?

Main stream media.

In reply to a post by burble:

A quick scan shows stories across the spectrum from the Daily Fail to the Guardian,

Given multiple millions of people moved to digital voice, it's not unexpected that there will be a few problem corner cases. That doesn't mean the whole thing is broken.

Media have a vested interest in turning a dull story into a clickbait one.

I have no doubt the vast majority will be fine, but that's not much solace for those who have problems, and it wouldn't supprise me if it was thousands having these problems.

So I got hold of a Fritzbox 7590AX and connected it to my Asus Router as an IP client.

That was the easy bit!

I then connected my Analogue phone to the Fon port and tried inputting my voip number Which is my old land line number along with country codes, local area code.

I then went to account and this is where I think I'm going wrong?

I input the following:-

Username; my voip phone number

Authentication name: Is this the same as username?

Password: as supplied by voip/broadband provider

Registrar: Is this the equivalent to voip server name?

Proxy server: Never needed this before with Yealink phone

STUN server: Never needed this before with Yealink phone

I do get a dial tone but when I dial a number I get the engaged tone.

Any help would be appreciated as my provider is not been much help because I'm not using their equipment.

Hi F111
Did you add the FON as a device? Telephony>devices>add/configure and set up the analog FON connection to suit. Useful features include ability to ‘whitelist’ callers so telesales get sent direct to answerphone.

Hi,

I can't get past the "Telephony check", I get the following error



The telephony check failed. Please enter your internet account information first, by continuing with "Next". To check the telephony account data, you must restart the wizard.

I finally managed to get this working, It was nothing to do with my Voip account details?

I discovered that I did not have an internet connection through my Asus router!!!!!

The Https ports having different values in the Router and the Fritzbox.

Once changed everything worked as it should so far!

Thanks for everyone's help.

I spoke too soon!

I now cannot get my Yealink phone to register?

I add the phone in telephony devices and when asked I create a user name and password or should this be my providers user name and password.

I input the same user name and password in the Yealink phone account details along with the IP address of the Fritzbox as the Server address.

I read somewhere about the Fritzbox issuing it's own range of IP addresses for IP phones/ Dect?

I assume if this is correct I would need to set up the Fritz box as cascaded router so as to issue it's own IP addreses and I could not use it as an IP client of my Asus Router?

You can configure the FB behind a router in two different ways on the page "Home Network > Network" "Network Settings " Tab. If you are using "IP Client" then your Asus Router will do NAT and DHCP. You would need to check the IP address of the FB. It would be the same as the IP address that you use to access the web interface of the FB.

Even though the IP address for the Yealink phone may be issued by your Asus router, it should not matter because the phone will send that IP address to the FB when registering. So what matters is that the yealink phone knows where to send the register message.

The other option is to set up your Internet router in Bridge Mode and the Fritzbox mode as "Internet Router". Then the Fritzbox will do NAT and firewalling. You could run your Asus router in NAT mode and the Fritzbox as well, but that may cause other issues when it comes to VoIP.

I am running my FB as "Internet router" behind a 4G modem in Bridge Mode, so I am not sure whether VoIP on the FB works if the FB is in "Client mode"

There are detailed instructions available here https://fritzhelp.avm.de/help/en/FRITZ-Box-7590-avme...

When you add the Yealink phone, you chose your own user name and password on the page "Apply Settings to the IP Telephone". You may want to configure a DECT phone (or a cabled phone plugged into the FB) as well and then check whether you can make internal calls.

Thanks for the information, I reset the FB to connect direct to the Internet through the Asus Router which gives the FB it's own network with it's own range of IP addresses however I still could not get the Yealink phone to register when connected directly to the FB using it's IP address assigned by the FB.

The down side to this is I can only use my FB App on my phone (using FB wifi) to connect to the FB to adjust any settings. Asus has given the FB an IP address which I can ping from my PC but not connect to the user interface. The IP address of the FB looking at the settings from my phone is different to that of the one allocated by Asus. I cannot access either IP addresses using my PC?

I will keep trying.

Edited by F111 (Sun 21-Jan-24 20:08:47)

Right at the beginning, you stated that you have FTTP from an Altnet provider.
So, you have an ONT, then the ASUS router and then the Fritzbox?

Do you really need that ASUS router (since the Fritzbox can do pretty much everything the ASUS could, I assume)?

How about ONT > FB > ASUS, then set FB to Operating Mode "Internet router" and on the page "Internet > Account Information" under "Connected via" select the method that works with the ONT.

At least that gives you (the FB) full control over the private IP addresses used in your LAN

Hi,

I use the Asus Router as it is part of my Mesh setup using AX88 + 3 @ AX92 nodes using ethernet for backhaul connection. This setup gives me full strength WIFI throughout all my house, Garage and Garden.

The good news is I have managed to get my Yealink phones to register with the Fritzbox.

I deleted the IP phones from telephony (for the umpteenth time!) but this time I reset Fritzbox to factory default, reboot and started again, setting up as IP client.

After a couple of attempts and a few reboots I got the phones to register.

Thanks for the help.