Okay, I got two SIPs at this moment: one LinPhone (use for telephone numbers disabled), another PennyTel (use for telephone numbers enabled).

One complaint: when I go to Phone, and try to SIP-call a phone number, it offers me to choose between the two SIP accounts (even though only one of them has "use for telephone numbers" enabled). Address Book seems to have no such problem.

Second question: how do I do an SIP video call? Can I do an SIP video call to a mobile telephone number (yes, I enabled Video Calls for PennySIM, but I am not sure whether PennyTel can handle SIP-video-call)? /Okay, I will probably test it by trying an SIP video call from myself to myself - from PennyTel to LinPhone or from LinPhone to PennyTel - two options, yay!/

Thank you,
Best wishes.