Unsupported Telenet SIP Trunk Configuration Guide | Belgium & Luxembourg

[KaterinaK_3CX]

Telenet SIP Trunk is no longer supported.

 

[azertykat]

Hello That guide will not do. I have a business abbo with telenet and they placed a hardware pxb gateway in the house. I,ve got a private ip adres plus subnetmask and a private ip adres with subnetmask as a gateway adres. No public ip adress was given. So I gave the first the private adress in the trunk but i got no sync. Tried the private gateway ip adres too but nope no sync. No fqdns was given. The access to the gateway is prohibited for only Telenet personel login and password unknown So we can not see the public adres of the gateway? We took this system because it should work with Telenet but it does not. Any idea's somebody?

 

[YiannisH_3CX]

Hi @azertykat

The guide specifically mentions to add the private IP address of the gateway as a registrar. And the Telenet trunk is IP based so no registration is needed so you will not see any registration attempts.
You say that you have no sync but what does that mean? Are inbound calls failing, are outbound calls failing? What is the issue exactly?

You say Telenet provided you with 2 sets of IPs for the gateway. Are those IPs in the private IP address of your network? If so then adding the private IP address of the gateway as your registrar should work without issues. If the IP Address is on a different IP range then you might need to add a second NIC on your 3CX server and create static routes so that all SIP traffic is channeled correctly.

 

[azertykat]

Hi @azertykat

The guide specifically mentions to add the private IP address of the gateway as a registrar. And the Telenet trunk is IP based so no registration is needed so you will not see any registration attempts.
You say that you have no sync but what does that mean? Are inbound calls failing, are outbound calls failing? What is the issue exactly?

You say Telenet provided you with 2 sets of IPs for the gateway. Are those IPs in the private IP address of your network? If so then adding the private IP address of the gateway as your registrar should work without issues. If the IP Address is on a different IP range then you might need to add a second NIC on your 3CX server and create static routes so that all SIP traffic is channeled correctly.

Hello Yiannish
Thank you for this fast reply!
I will explain I have a telenet connection for my regular internet, after we ordered a pbx telenet placed a second modem and connected to this modem a Audiocodes MediantTM 500L MSBR device. It is not possible to open a browser with this connection so we think he is entirely prohibited for voip.
The first modem has as network 192.168.0.1 but the credentials given for the other mode gave another private network 192.168.1.0. Only one nic so they adviced us to use a switch so we could reach internet. Installed 3CX setup a sip trunk following you're manual registered a ip phone but no tone checked firewall etc. but no tones nothing happens? Both networks are connected with a switch so we can have internet. Telenet gave for the connection Central IP-Adres 192.168.1.1 255.255.255.0. Gateway to use 192.168.1.10 255.255.255.0 which of the two ip's to use is unclear and why is there a subnetmask added ??? Do we have that to input too together with the ip adres in the fields of the trunk sip? Thank you for listening. Greetings.

 

[YiannisH_3CX]

What local IP does your PBX have? Also can you reach the 192.168.1.0 network from the 192.168.0.1 network? You don't have to be able to login to the audiocodecs device you just need to be able to reach it or ping it.

 

[azertykat]

So called by telenet Central IP-Adres 192.168.1.1 255.255.255.0.
so called Gateway to use 192.168.1.10 255.255.255.0
To reach the gateway i have to give the ip adres they called central ip-adres of the gateway to the NIC of the computer. Give no adres to the nic and you get an apipa adres no DHCP I Presume.
This given 192.168.1.1 adres appears on the dashboard in green after I gave it up in the sip trunk.
Tried so called gateway adress 192.168.1.10 too but that gives the same result.
If I can reach the networks inbetween I did not try yet. They have both 255.255.255.x as subnetmask so normally they are separated. To run 3CX i need internet (license) webclient etc. but that goes I think to the network connected with internet 192.168.0.1, 192.168.1.1 is another network only for the pbx but there is switch that should solve this?

Greetings Johan

 

[VasilisV_3CX]

@azertykat, from your description I believe that your PBX cannot communicate with the Telenet Central Gateway as they're on different subnets, thus the easiest way would be the install another NIC (be it physically or virtually depending on your set up), rather than a configuring a switch. You'll need to use static routing to ensure traffic is routed correctly on the OS level.

If you need any assistance in setting things up, I'd suggest contacting a 3CX Partner in your area.

 

[azertykat]

Two private different network with own ModemGateway 2 nics add route to gateway pbx.
Can ping between networks but cannot ping audiocodec gateway ip pbx device..
Only login page pbx is to ping and accessible via http (onlyTelenetPersonel) no access configuration.
Phoned Telenet they have the message only responsible for the connection to the audiocodec everything works at their side. So Good luck...

 

[VasilisV_3CX]

Hi @azertykat,

As previously mentioned, I believe you best path forward is to speak with a 3CX Partner. You can find a partner here:

https://www.3cx.com/ordering/find-reseller/

 

[JochenAndries]

@azertykat :
Can I help you? I have 2 Telenet-Gateways on-prem

 

[azertykat]

Hello Mr. Andries

The telenet saga is on hold. I phoned them and the only thing they could do was to check of the connection was ok and that was the case. No intention to help you any further.

There are two seperated local networks and one of them for only the VOIP traffic. I did ping all the interfaces but had no connection in what suppose to be the gateway. So I presume that what telenet wants is you use only one of their software platforms and installers or 3CX system which is also supported by them in what seems a network of 3CX installers al with a business connected to telenet. Telenet's business trunk subcription is not expensive but to connect the software to run that costs a lot more when you have to hire someone of their preferences.

They explicit mention in the contract that one of the installers of the software must be at the place of installation when they activate the trunk at the install adres.
You can not get any more info when you were not there is my experience, so sell a subcription rather cheap and knowing without more info you will come back to them for their software or the extern software installers who are bound to telenet.

The trunk is locked with password etc. so you cannot see what is configured at the trunk.

I must say I tried this with a windows pro OS and what I can read about other solutions with two networks they mention a windows server install or ubuntu. Windows server costs a lot and ubuntu is even more difficult.
So this is a long and winding road.

Thanks for listening.

Greets

Johan

 

[JochenAndries]

Here's our setup:

3CX in local network + 2 VOIP LAN's (dedicated NICs)

On 3CX-Server:
1 VOIP-NIC : 172.10.10.1 - 255.255.255.0 - no DG
1 VOIP-NIC : 172.10.11.1 - 255.255.255.0 - no DG

In 3CX / SIP-Trunks:
First Trunk: host = 172.10.10.10 (IP Based authentication)
Second Trunk: host = 172.10.11.10 (IP Based authentication)

It is *not* possible to ping these hosts.

When needed and wanted, give me a shout, we (you and me) can have a look with Teamviewer,...
I'm also an End-User, having 3 64channel PRO-servers, having a lot of knowledge in-house.

Jochen

 

[azertykat]

Thanks Jochen
I will look at it later.

Johan

 

[xantip]

Hi Jochen,

I connected a 3CX today to a Telenet SIP trunk.

The problem I have is the incoming numbers are not correctly displayed in the 3CX client.
All numbers are displayed without leading zero for Belgian numbers and 00 for international numbers.

For example 012123456 appears as 12123456.
I already experimented with caller ID reformatting, but I can't get it sorted out.

Any ideas?

Thanks,

Jos

 

[Evolute IT]

Hi Jochen,

I connected a 3CX today to a Telenet SIP trunk.

The problem I have is the incoming numbers are not correctly displayed in the 3CX client.
All numbers are displayed without leading zero for Belgian numbers and 00 for international numbers.

For example 012123456 appears as 12123456.
I already experimented with caller ID reformatting, but I can't get it sorted out.

Any ideas?

Thanks,

Jos

I recommend checking the provider side to see if they can send other formats. They might be sending it "as is" right now.