have an issue between 2 definities using dcs and transparent ccs on a voip router connection. It all works for about 20 minutes then the PBX's drop out the trunk claiming to have loss of frame even tho' there are no alarms on the router e1 interfaces.
TAC thought it might be clocking but surely that would result in "audible clicks/bangs" etc and then recover. When the PBX's drop out a reboot of a router is reqd to recover.
Anyone seen this ?