I have two different Iwatsu IP applications that have problems. One is a Adix with 8.13 software that has 1 Ipsub card running 8 ipktd's across a T-1 since they were installed there has been a bad audio clipping and distortion problem. The 2nd is a ip network application,i have an ECS with 1.5 software and a ADIX with 8.13 they are connected with an IPNET card across a T-1. They have had echo and distortion problems also. I have followed Iwatsu's recommendations to fix these problems and there has been some small improvement but the audio quality is still bad. The software in all the ip cards has been upgraded to the latest on there website. Any suggestions. TNTJeff