atcomsystems.ca/forum Forums TDM Business Telephone Systems Toshiba Telephones & Systems long dialing lag on IPTs to CIX

hello everyone, long time no see!

all your previous advice has kept my system running deliciously error-free for a good amount of time now! but alas i'm back again... and with a new issue i wanted to see if anyone had heard of/knew anything about:

we've just experienced, for the second time, "dialing lag" on our IPTs. you push a key and the system will eventually respond about 2 seconds later. voice quality is still great. our network is not overtaxed and the in-house IPTs and the LIPU are on their own switch.

it began with offsite IPT not being able to connect (i originally thought this was due to latency), and then shortly afterwards, the dialing lag started. the 2nd time (this week) that it occured, about 36 hours after it began, suddenly there's no connectivity by VoIP at all, even using locally connected IPTs.

i could ping the LIPU and eManager was telling me that everything was cool, but i rebooted the system tonight and everything came back up fine again. even the remote site's IPT.

our dealer said maybe something affecting the TCP packets but not the UDP...? i've checked out our network pretty thoroughly and we're pretty clean. i'm just worried because out of nowhere this is twice in just over a month.

any ideas?

thanks!!

I've ran into this alot with our system. If we happen to run a video conference or even something else that takes up all the bandwidth for a long period, it kills all the IPT's - internal and external. It will start with one phone not being able to connect and then progresses from there. It's always fixed by a system or card reboot. But it would be nice to know why it takes down all the phones.

This may or may not apply, but I had a similar situation with an ESI customer this week that was sharing bandwidth until the lunkheads at Covad get their paperwork correct and a circuit installed.

We went from DSL modem to a overnighted Linksyis DI-102 unit to a switch that had Linksyis analog ports attached and then to a Linksyis wireless router/switch.

All the problems went away.

DSL modem to WAN Port on Linkysis DI-102, out on LAN Port to 5 Port Linkysis switch that had 3 Linksyis 2 port analog boxes (ala Vonage box) and one port to 4 port Lynksyis router/switch/firewall then out to computers.

The DI-102 box was about $65 from Amazon on a Froogle search. Buy on Amazon, shipped from Cisco warehouse.