I´ve got the Solution 
It is true to setup 1und1 about telekom.
But some Caracters is to set:
“Hauptleitungen”
inband Progress = yes
Force rport = yes
Server URI: sip:[email protected]
Client URI: sip:[email protected]
Send Connected Line = yes
Username is right “049phonenumber” eg (4989123456)
@dirk:
when i don´t set the options i recieve more than one call.
And thank you for help