atcomsystems.ca/forum Forums TDM Business Telephone Systems Inter-Tel Telephones & Systems 'Cloudy' weather - Internet Cloud

This may be too much, but I'll try anyway, as current vendor not much help.

We have four sites, three in the US of A, one in the U.K.

Two US sites on Axxess, one US and the UK site on 5200s.

The USA sites on eVPN/MPLS networking.

We have a constant problem with one USA site dropping site-to-site calls, and the UK site was so bad we have dropped it out entirely for now.

According to our ISP - ATT - QOS is properly configured.

I have my doubts.

1) Is there any way to check on this from the 'inside' - our sites - to verify and/or gather info for ATT to use?

2) Are there any settings in the Axxess and/or 5200 systems that need reviewing or 'loosening'?

:bang:

Well there are things that you can do but you will likely need to hire someone who has the proper tools. The best test would be to run a network assessment, specifically one that can simulate traffic on the network and tally the stats. Even more specifically generate traffic with specific ToS bits set to verify that the QoS is doing what the carrier says it is. What you would want to do is run a VoIP assessment and mark the VoIP traffic with lets say DSCP EF, and also generate a good deal of background traffic with out the DSCP marking. The results of the test will show you specific network performance parms that will be telling as to if the QoS is working or it isnt. This is assuming that the QoS in the WAN cloud is prioritizing based on ToS (DSCP or IPPrec).

Is my problem related? I have occasional "insufficient bandwidth" issues which drop calls. One Axxess and two 5200s. The Axxess and one 5200 are connected via an AT&T Opteman. The second is connected via public internet (soon to be upgraded to MPLS). The public internet connection has not been as much an issue as the Opteman connection. Our network guy cannot find any issues with network bandwidth when this occurs.