atcomsystems.ca/forum Forums TDM Business Telephone Systems Vodavi Telephones & Systems XTSip with PRI using Combo Card problems.

I don't even know where to start with this one. The system was connected to the PRI ten days before the cutover. It is a new PRI with 20 did numbers and 2 additional numbers pointed from the customer pots to the PRI. We cut the swtich over at night, no errors on the DMS 500 span, could make calls in and out no problem but it seemed a bit slow to connect when going out. The next day we had the telco point the main number to the PRI and that is when the problems started. Customer could not always dial out. They would dial 9 get dialtone, dial the number and it would just sit there. Inbound callers were getting busies, long ring times, and recordings saying the number was no longer in service,number disconnected, try again etc. I got on the phone with the techs and they had the PRI configured for sequential as opposed to most idle and only the first 4 channels would take calls, the 5th caller would get the error. He reconfigured it for most idle, reset the PRI on his end, but got a number of errors which forced me to reset my card. It finally came up and we made a lot of calls in and out. The telco also made an interdigit timing change. No problems....for about a week then it started all over again. Now the finger pointing is getting really bad. Out of desperation I pointed the main number back to the pots to stop the inbound recordings but outbounds remained on the PRI. We then made some additional option changes on our swtich as suggested by Vodavi: PRI restart, set the PRI to the Nortel option, Pri Centrex plan unknown. We left it like that while checking other DID numbers to make sure we could call in. Worked without a hitch, although I think my changes had nothing to do with it. The customer when dialing out started using the # sign to speed up the connection. Two days ago (thirteen days later) we repointed the main number back to the PRI made a tremendous number of calls..all looked fine. I turned on LCR to speed up the outbound call connections. Yesterday outbound problems started up again.Customer dials the number with LCR, the XTS siezes a line and the call sits there. Etrace reports no ACK from CO. Inbound seems to work fine. Now the telco is going to move the circuit to a different port on their CO. It is the first substantial thing that they have done other than tell me it is my problem. Vodavi insists that it is a telco D channel issue and I have done all I can do on my end. I have again asked the telco to verify all parameters of the PRI, NI2, call by call enabled,FAS, ESF, B8ZS, channels set for wink. I intend to replace the combo card with a standard PRI card if the problem continues. I don't think that will fix the problem but I think I need to try it anyway.