We recently had an interesting troubleshooting experience with a customer where we provide a PRI via an Adtran TA900 to a PBX maintained by a different vendor. Both the new PBX and the SIP based PRI were turned up at the same time.
Everything went smoothly from a configuration and installation perspective, no issues to report. Shortly after turn-up, we started getting reports of random dropped calls on transfer. (more…)
