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Asset ID: 1-71-1939926.1
Update Date:2017-02-15
Keywords:

Solution Type  Technical Instruction Sure

Solution  1939926.1 :   Point Codes of Exchanges Are Not Accessible From Soft-Switch Via STP  


Related Items
  • Oracle Communications EAGLE (Software)
  •  
Related Categories
  • PLA-Support>Sun Systems>CommsGBU>Global Signaling Solutions>SN-SND: Tekelec Eagle 5
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  • Tools>Type>Guide
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In this Document
Goal
Solution


Created from <SR 3-9776059081>

Applies to:

Oracle Communications EAGLE (Software) - Version EAGLE 40.x to EAGLE 46.0 [Release EAGLE 40.0 to EAGLE 46.0]
Tekelec

Goal

Calls Originating from Softswitch are not reaching TDM exchanges of other Region

Call Flow:
Soft-Switch -------> Region1-STPA + Region1-STPB (LoadShare) --------> Region2-STPA ------- >TDM Exchange

From Soft-Switch we have M3UA Links with Eagle Region1.STPA and Region1.STPB. M3UA Link Status is normal. But the End Office status is un-reachable.

From Signal Trace of M3UA :

SS Sends message = DAUD -- Destination Status Audit
ISB.STPA and ISB.STPB Replies with = SCON SS7 Network Congestion State
Then ISB.STPA and ISB.STPB Replies with = DRST Destination Restricted

The end office status is unreachable from Soft-Switch.

Solution

The Region2-STPB is out of service. The route restricted messages towards end exchanges occur because the STP-B route is not available.
Hence; Region1-STP sends "DRST Destination Restricted" message back to Softswitch.
When the route to STP-B Lahore is removed; the DPC restricted messages are cleared from STP.
The Softswitch team needs to check why the Softswitch considers a Destination Restricted Message as Destination Prohibited.
After deleting the routes to Region2-STP-B; the traffic is normal.


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