I would like to use a softphone on my desktop. We have an telekom IP contract and they tell me it is possible to use any sip phone. I installed SFLPhone and tried to enter my credentials but it just fails.
I asked my provider, they told me the following:
SIP-ID/Benutzer: Ihre Telefonnummer
Bildschirmname (falls vorhanden): Ihre Telefonnummer
Authentifizierungs-Name / Benutzername: Ihre E-Mail-Adresse, z.B. "[email protected]"
Passwort: Ihr Passwort
SIP-Proxy: tel.t-online.de
Registrar: tel.t-online.de
Realm: tel.t-online.de
STUN-Server: stun.t-online.de
Outbound-Proxy: leer lassen oder ebenfalls tel.t-online.de
I tried nearly every combination but I can't get connected. But I don't see why. I don't know where to put what.
Does somebody know how to debug sflphone (or other softphone on ubuntu) to see what fails exactly?
(or even better: does somebody know how to configure it with telekom IP contract?)