7200 system with pri phones are set to forward all it does forward the call, but the caller hears nothing on their side it just sounds like the call didn't go through. the external number will ring 1 time, and say missed call if the caller stays on the line it will ring the cell phone again 1 time and say missed call it will do this a couple of times, and then the caller will get a recording saying your call didn't go through. i have the call forward external time set to 1 sec.

you need to set in MMC 2xx Ten on & off.
ICM EXT FWD should be set to Yes. if set to No you cannot forward any calls. also on a PRI you cannot forward calls if they are ringing a STN group.

icm ext fwd is on and its not a group its DID calls to ext.

If your software is high enough use mobex ext.

I believe there is also a "Give ringback" on transfer setting as well.

Also... make sure ISDN PROGCON is set to on.

isdn progcon is on changed call forward external time back to 10 and it works sometimes about 1 out of 5. tried 5 sec, 10 sec 15 sec and 1 sec i can only get ring back about 1 out of 5 times.

Is that DID going to an actual extension or a virtual? That message the caller hears "Your call did not go through" where is that coming from, is it from the Voicemail or a CO message? If you route that DID to the SVMi and use a Dial Block will the call go through? Sorry for the questions but just trying to get some more information so we can point you in the right direction.

the did goes to a actual ext. the message is from the co. not sure about teh dial block have not tested that.

OK what is the "number you are delivering" to the CO from the stations. Is it the same as an allowed number that you are assigned? If you are sending a false number from the system the CO might not allow the call.

You need to check your "send CLI" tables and make sure they are correct. Obviously you can make outbound calls directly but thats is not to say that the system in not sending the station number and the CO is denying it.

i'am sending the DID number for outbound i don't know if you misunderstood me but it will forward the call out, it just rings the phone 1 time and disconnects it does that 3 or 4 times and then you get recording from carrier saying call cannot be completed.

I didn't misunderstand. Some Co's don't catch the call until the ring actually cycles. Like when you call forward your home number to your cell. The house line still rings once before forwarding.

Obviously the CO is handling the call which is why you are getting the message from them stating the call did not go through. So my next step would be to contact them and have them trap the call stream while you are forwarding a call. This way they can tell you exactly what is happening.

yes that's a good idea i think i will try that, but it at&t is the carrier so wish me luck.