Good point. I will check how the customer’s PBX is set up. They claim to take the clocking from the line but it really looks like that they use an internal clock. Hence the fact that when the ISR is set to Network there are slips.

Hi Hiroshi,We are the Telco and connect into the core with SIP over either Fiber or VDSLCore-SBC -------(SIP over Fiber or VDSL)----> ISR4321-----> PBX (two E1s on same NIM)master -> slaveOur only way of getting to a No-Slips situation is by taking t...

Hi hishiyam,Very nicely explained articale. We are in the position of using the ISR4321 as the network side. So we want to provide clocking to PBXs.We do not want to take clocking from the line (end customer's PBX). In this scenarion the most logical...

Hi Pax,Here is a short overview on using SIPtool. There is no official documentation describing this nice little tool so I put this together..  good luck. If you need any further help with it just let me know.RgdsDonal WhooleyIFORB GmbH, PGW2200 & BT...

I would has it a guess that the .300 is the average number of bloked circuits over the last 330 seconds and 1800 refers to 1800 seconds.The output is also given for each individual SS7 tgrp.RgdsDonal WhooleyIforb GmbH, Zurich, Switzerland