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Common AT0 problem for UAE

Publication Date:  2014-10-14 Views:  68 Downloads:  0
Issue Description
the most of versions for U19xx spetially if you oinstall it in Egypt or UAE,......etc
Alarm Information
busy tone
Handling Process
1-You have to check the current parameter setting like [buy tone and dial tone]of the AT0  
[%eSpace U1910(config)]#show tone detect parameter tonetype Busy1

Detection tone parameters

Freq1Min Freq1Max Freq1Dbm Freq2Min Freq2Max Freq2Dbm OnTime1Min OnTime1Max OffT
ime1Min
-------- -------- -------- -------- -------- -------- ---------- ---------- ----
-------
400      450      -20      -        -        -        370        380        370

OffTime1Max OnTime2Min OnTime2Max OffTime2Min OffTime2Max
----------- ---------- ---------- ----------- -----------
380         -          -          -           -

====  Command executed success !  ====

2-save the old seting to be backup with you in case you need to return it back to the old setting.
3-change the Busy tone and dial tone regarding the attached table regarding your country .



4-for the max freq you have to + 25 and for the min freq you have to -25 , and for the max on time +5 and for min -5
For Example : from the table the freq is 425 . so the max is 450 and the min is 400 .

5-use the following commands to set the busy tone and the ringback tone as per the table:

config tone detect parameter tonetype Busy1 frequency1min 400 frequency1max 450 ontime1min 370 ontime1max 380 offtime1min 370 offtime1max 375
config tone detect parameter tonetype RingBack frequency1min 400 frequency1max 450 ontime1min 395 ontime1max 405 offtime1min 195 offtime1max 205 
6-save and reboot the IPPBX . and then you will find evry thing is going well .
Root Cause
the tone parameter is not configured correctly and have some confilict with each other , like when the provider send you the ring baack it will conflict with thew busy , so the system will consider the ring back as a busy tone and hang up the call 
Solution
add the follwoing commands :

config tone detect parameter tonetype Busy1 frequency1min 400 frequency1max 450 ontime1min 370 ontime1max 380 offtime1min 370 offtime1max 375
config tone detect parameter tonetype RingBack frequency1min 400 frequency1max 450 ontime1min 395 ontime1max 405 offtime1min 195 offtime1max 205
Suggestions
if the problem still exists , kindly detect the tone manualy and then ,modify your setting regarding the new detection.

END