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R2 I15 signal message

Publication Date:  2017-08-07 Views:  15 Downloads:  0
Issue Description

Customer has a 1981 as a main PBX une 1960 as a branch and several 1911 also as branches. When customer make an outgoing call to southamerica and some other countries if the call goes through any 1911 trunk  the call can not be completed, however if they dial trough the 19609 trunk the call was completed.

Customer uses an R2 trunk

Handling Process

Check R2 signaling and found that USA calls are ok, but at south America calls, we send I15 and PSTN send us back A1REQ

 

Example of success call to USA at the U1911:


success call to South America at 1960:



 

Root Cause

Establish a conference and they argue that, his system is ok and no need to change anything, we need to increase the timing or take out the A15 signal request.

Solution

R&D provide the following command to be apply as super user at CLI :



config delete register send id 6 logicevent 9
para 1



This change the message that causes conflict with PSTN device and calls were successful.

 

 

END