[Blink] Config problems with 1&1 SIP provider

Adrian Georgescu ag at ag-projects.com
Wed Mar 2 18:10:30 CET 2011

I checked on the web and this seem to be a common problem with 1und1. They require the SIP clients to present a public IP address in their Contact header.  

I will check how much effort is to make STUN working with our client for the registration process. 


On Feb 28, 2011, at 5:33 PM, Robert M. Münch wrote:

> Am 27.02.2011 um 20:03 schrieb Adrian Georgescu:
>>> I have STUN information for their service. Do I need to configure Blink to use it? Where can I do this?
>> You cannot. Using STUN for Register is an unreliable because whatever you learn from a STUN request may change over time without being noticed and STUN query results depend on the type of NAT you are behind, is undeterministic behavior you cannot rely upon. 
>> Blink does not use STUN for Register nor should any SIP service rely upon STUN, is bad practice.
> Hmm.... ok. Why does "Telephone" work with 1&1? It doesn't has these connection problems, but others in that it crashes quite often.
> So no luck to get Blink to work with 1&1?
> --
> Robert
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