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SIP-Trunk: 3CX and Germany Vodafone (former Kabel Deutschland)

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Pfiff

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Hello,

some weeks ago, I decided to change my PBX system.
I used Asterisk now with FreePBX befor. It worked quiet good, but some features are missing or complicated. I hope that 3CX on Debian will to things like provisioning quiet more easier.

Back to Topic...

Under FreePBX I solved it after 2 Weeks to connect my 4 numbers to the Vodafone trunk.
Now I tried it on 3CX, but I solved it yet.
The Vodafone Trunk which was former known as Kabel Deutschland, offered me the following Information:

  • SIP-Username: 23318****
  • SIP-Proxy-Server: sip.kabelfon.vodafone.de
  • SIP-Registrar: sip.kabelfon.vodafone.de
  • SIP-Port: 5060
  • My 4 numbers
  • one password.

Now I tried to create a SIP-Trunk with differed variations of thees data.
See attached images.

But no variation worked successful.
Every time I got:

SIP Server/Call Manager ID: 12294
Call or Registration to Generic VoIP Provider has failed. sip:23318****@sip.kabelfon.vodafone.de:5060 replied: 403 Forbidden; from IP:88.YYY.XXX.ZZZ:5060

I used the following configurations under FreePBX so set up a Trunk successful.

-----------------------------------------------------------------

SIP-Settings outbound:
Trunk Name:
+4958120******

PEER-Details:
username=23318****
type=peer
secret=<PASSWORD>
qualify=no
outboundproxy=sip.kabelfon.vodafone.de
insecure=invite,port
host=sip.kabelfon.vodafone.de
fromuser=+4958120******
fromdomain=sip.kabelfon.vodafone.de
dtmfmode=rfc2833
disallow=all
allow=alaw

---------------------------------

SIP-Settings inbound:
User Context:
+4958120******

User Details:
type=user
secret=<PASSWORD>
context=from-trunk

Register String:
+4958120******:<PASSWORD>:23318****@sip.kabelfon.vodafone.de

-----------------------------------------------------------------

How can I configure a working Trunk on 3CX?
What is wrong with my settings?

3cx01.png
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3cx04.png
 
Hi Pfiff,

As i can see from the provided picture of your event log the registeration was forbidden with a 403 error by your provider (88.YY...)so your provider is the one that you have to come in contact to solve this problem. If you find a solution to your problem,please do post it for future reference.

Thank you
 
Did you add the trunk as a generic trunk or did you use the 3CX provided template?
 
I tried both
You can see screenshots in the Vodafone Forum
 
Can I set the Contact while registration to Trunk from Long Contact to short Contact?

How can I edit the register String?
I think I have to use it in the following format:
<INTERNATIONALNUMBER>:<PASSWORD>:<USERID>@sip.kabelfon.vodafone.de
 
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