sundance-communications.com/forum Forums TDM Business Telephone Systems NEC Telephones & Systems incoming calls get "call cannot be completed as dialed"

We just installed a new NEC 2000IPS system and we are now having problems with incomming calls. Our customers are sometimes getting the following conditions. 1. call cannot be completed as dailed.
2. they get a busy signal 3. Number is no longer in service. We can reproduce these conditions even when looking at the NEC system and seeing that we do not have that many calls in the system.
We have 43 lines split over 2 PRI's. We have been having this problem for the last 3 weeks and I'm getting tired of the finger pointing going on between the telco and our installers. If any onehas seen this problem and can direct me to an area to look, or has any posible solutions or suggestions that my help is solving this problem that would be great

Do calls made within the same serving CO go thru?
Do calls made outside the serving CO (e.g., cell phone) not go thru? Were the numbers being dialed recently ported from one Telco to another?

Sounds like the telco has not completed their database update.

Calls made from outside the serving CO must first perform a look-up with the national SS7 network database to determing the validity of the number, which telco has possession of the number and to which telco network to route the call. If the telephone number is not in the database, then the call will not go through.

Try this, dial the number from your cell phone. If you get the telco recording, listen to the entire recording, at the end there should be a numeric code. Then call the telco repair department, give them the phone number, the recorded message and the numeric code. The code identifies telco and switch where the problem is occuring.

You will get that message if the incoming DID is not routed properly in the IPS.

thanks for the reply's, just a note our PRI's have been working for the last 3 years, nothing has changed. However, we do get a telco numeric code, sometimes when we get these messages, however, If I call from 10 time from the same external phone (we have a remote connection into a different phone system in Indiana, 4 out off 10 will get the call cannot be completed as dail message. This leads me to beleve we have a problem with our setup. All our lines are handled via a ACD we have 8 listening port and 4 voicemail ports.

DrPbx could you please expand on your comment that
the incoming DID is not routed properly in the IPS.

Also I have a question on how the NEC ACD works, on our old nortel system the voicemail ports handled the inbound calls and the playing of the acd messages and the acd ports handeled the routing of the calls in the acd to either the voice mail or a users. Does the NEC ACD work the same.

If a DID is not translated correctly in the IPS2000 CM 7600, 7601, 7602 etc... you could get a 'disconnect' recording from the telco.

D