Dialed DISA number gets ringback

Dialed DISA number gets ringback instead of stuttered dial tone The remote caller has dialed a  DISA number, but has instead reached a target line,  or has been routed  to the prime telephone for the auto-answer trunk. The Norstar system has mapped the incoming digits from a switch onto a target line, or has been unable to map the digits anywhere. Solution 1. Verify  that  the switch is  sending the correct number of digits for the Received number length defined in your system. 2. Verify all the digit strings that the switch should be sending. 3. Check that you have defined the correct DISA DN for your system. 4. Make sure that the published telephone numbers for your network are correct. Dialed DISA number gets dial tone instead of stuttered dial tone Possible problem The remote caller has  dialed a DISA number, but has reached the Norstar system instead. The Norstar system has mapped the incoming digits from a switch onto the Auto DN. Solution 1. Verify  that  the switch is  sending the correct number of digits for the Received number length defined in your system. 2. Verify all the digit strings that the switch should be sending.