atcomsystems.ca/forum Forums TDM Business Telephone Systems Avaya - Lucent Telephones & Systems Bad TTR's??

I have a customer with 4 ground start lines coming across a T-1. The rest of the T-1 is two-way DID. The operators use the ground start lines to recieve incoming calls and dial out. Every 6th and 8th call, they can't break dial tone. It is consistant on every line. If I dial out on line 1, on the 6th try I can break DT, then on the 8th Try I can't break DT, then it starts over. They only have a 400 card and 012, so they only have 6 TTR's to begin with. I would have thought if I had a bad TTR, it would be one out of 6 tries. Anyone have any thoughts or suggestions? The provider of the T-1 was out yesterday to test and could not find any problems on thier end.