Not receiving information from D Channel.

[telecomtekperson]

Below is a trace from Time Warner Telecom. When a call is placed from an employee in TX, to corporate (WI) the employee always gets a fast busy. Employee can call from cell phone fine, just not home number.
Made a test call from my house (Time Warner Cable also, same area code) with no problems.

Site has a 3 carrier Legend R7 with 2 PRI's. Doesnt matter what number is called from TX, always gets fast busy.
Here is the d channel information from the trap:

208 03232010 201401.00004:1.07.18472.Info .ISDN : Service AEM-1-7-3-26 D1 : L3 TX CREF=0493 IE[01]=BEARCAP (Coding=CCITT Cap=Speech Mode=Circuit Rate=64kbps L1=G.711ulaw)
250 03232010 201401.00005:1.07.18473.Info .ISDN : Service AEM-1-7-3-26 D1 : L3 TX CREF=0493 IE[02]=CHANID (IntfID=Implicit Intf=Primary Pref/Excl=Pref DChInd=N ChanSel=Ch#2 Coding=CCITT ChanInd=Num ChanType=B-ch)
234 03232010 201401.00006:1.07.18474.Info .ISDN : Service AEM-1-7-3-26 D1 : L3 TX CREF=0493 IE[03]=FACILITY (Protocol=NetExt Interp=discard Invoke Id=1 CallingName allowedSimple "EMPLOYEES NAME ")
255 03232010 201401.00007:1.07.18475.Info .ISDN : Service AEM-1-7-3-26 D1 : L3 TX CREF=0493 IE[04]=CALLGNUM (NumType=National NumPlan=ISDN/Telephony[E.164] PresentInd=Allowed ScrnInd=NetworkProvided Digits=EMPLYESS NUMBER)
206 03232010 201401.00008:1.07.18476.Info .ISDN : Service AEM-1-7-3-26 D1 : L3 TX CREF=0493 IE[05]=CALLDNUM (NumType=National NumPlan=ISDN/Telephony[E.164] Digits=4125)
188 03232010 201406.00001:1.07.18503.Info .ISDN : Service AEM-1-7-3-26 D1 : L3 TX CREF=0493 RELCOM (MsgLen=9 CRLen=2 CRFlag=0[orig] IE[01]=080282e6)
230 03232010 201406.00002:1.07.18504.Info .ISDN : Service AEM-1-7-3-26 D1 : L3 TX CREF=0493 IE[01]=CAUSE (Coding=CCITT Location=Pub[local] Cause="Recovery on timer expiry (102)" Class=ProtErr)

The Legend never even acknowledges the call, never rejects it or anything....
Is this a problem with our equipment? I cant think of how....
Please help.

http://www.telemanuals.com

http://www.telemanuals.com/forum

 

[memphisribs]

Had the same trouble recently with AT&T IP Flex, said it was not their problem. But a Mississippi location could not be called from exchanges in NY & NJ. Everyone else could call the number fine. It took the customer 3 weeks of argueing and fussing,finally someone found the Network problem and fixed it.
Why your carrier doesn't take responsiblity for this I don't know. Sure ain't Ma Bell.
It is not your switch problem, unless they can prove it to you.

Good luck

45 years in the business and counting.

 

[telecomtekperson]

Do you know what was fixed?

http://www.telemanuals.com

http://www.telemanuals.com/forum

 

[Telecomboy]

I've had this happen before as well. It is in their routing tables of their switches.

If the Legend receives a call (and it see's the PRI up-which it is in this case) even if it doesn't know what to do with the call it still sends the call to the operator. It won't generate a busy tone for you like you say is happening.

 

[SYQUEST]

Whether busy tone or recording is determined by how the CO switch interprets the message sent from the Legend/Magix.

What error codes if any, showed in the alarm list. If the Legend does not even see the call, then the CO switch is probably blocking it. Open a trouble ticket with Time Warner, and escalate if you have problems.

....JIM....

 

[phop]

If he can get through on a cell phone but not his home line it sounds like an issue with the 5ESS. Also, I assumed that you checked all of the restrictions within the switch (like area code blocks, etc). I am with you though, sounds like a switch issue on the supplier end.

 

[phop]

one other thought...have the caller try a toll free number terminating at the same location. That would hit the 5E first too and then maybe you can determine if that is the issue.