S100 with IP SIP phone , outgoing call to BRI
Ougoing call « 0 » then outside number
Randomly from any IP Phone when they made ougoing calls , numbering not realized, screen on IP phone return at original
After 2 or 3 or 4 (or more) trying same outgoing call number is realized
Sometime work well immediatly at first number call and next one problem again
Have you an idea ?