KX-T: KXT-624 Stuttering/Clipped Ring Problem

Hello, We have a client with a Panasonic kxt-624 version 5 KSU which suffers from intermittent ringing problems. Incoming calls always ring the phone system, but on a seemingly random basis the ringing is clipped, or unusually short. The client describes it as a stuttering sound at times, with a n

KX-T: KXT-624 Stuttering/Clipped Ring Problem, Continued

Thanks for all the suggestions on testing line voltage, getting the phone company involved, etc. Unfortunately we haven't been able to schedule a service call with the customer yet, and are hoping to have some kind of interim solution to put in place next time we visit. The problem may take some t