[Freeswitch-users] error 403 registering at 1und1.de

Christian Tausch christian.tausch at fh-koeln.de
Tue Jul 24 13:20:10 MSD 2012

Hi list,

i ran into a problem configuring the german voip-provider 1und1.de as a 
gateway. I have not completed my configuration yet, but in a first test 
the registration fails:

The response to the second REGISTER message is "403: Contact User und 
Anrufernummer verschieden" (en: 403 Authentication User Name does not 
match account name).

The visible difference between the REGISTER of freeswitch and the 
(working) SIP-client twinkle is indeed the user-string in the 

Freeswitch: (gw + name)
Contact: <sip:gw+1und1.de@<public-ip>:5080;transport=udp;gw=1und1.de>

Twinkle: (extension / login-user)
Contact: <sip:4921XXXXXXXXX@<public-ip>;transport=udp>;expires=3600

If this is the cause of the error message, is this expected behavior of 
a provider? And more important is it possible to configure freeswitch to 
set a specific contact-user?

Thank you for your time.

Christian Tausch


Attachment (conf/directory/default/1und1.de.xml):
   <user id="1und1.de">
       <gateway name="1und1.de">
         <param name="realm" value="1und1.de"/>
         <param name="username" value="4921XXXXXXXXX"/>
         <param name="password" value="password"/>
         <param name="auth-username" value="4921XXXXXXXXX"/>
         <param name="proxy" value="1und1.de"/>
         <param name="expire-seconds" value="600"/>
         <param name="register" value="true"/>
         <param name="retry-seconds" value="30"/>
         <param name="context" value="public"/>
       <param name="password" value="password"/>

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