- This topic has 9 replies, 1 voice, and was last updated 12 years, 4 months ago by Ali.
30th December 2008 at 13:41 #55238moufGuest
What is the solution for high BSS internal call drop?31st December 2008 at 17:26 #55239PixGuest
Internal call drop is usually due to O&M lock/unlock or due to “crazy” software reboot (BSC software or BTS software… it depends)
How many cells are having high BSS int. call drop ? What is the value ?2nd January 2009 at 04:09 #55240AliGuest
BSS internal drops may also cause due to fluctuation on ABIS,if the BSS is Alcatel, then check for historic alarms from OMC,to check is there any fluctuations or even any sector which fluctuate due to any hardware issue..2nd January 2009 at 14:00 #55241moufGuest
two cells of the same site, the value is 17% and 10 respectively2nd January 2009 at 17:10 #55242PixGuest
Abis fluctuations are mostly reflected by “remote transcoder” call drops, not “internal bss” call drops. But perhaps you’re facing a special problem on your abis?
2 cells of one site… Well, are you sure nobody lock/unlock or reset an equipment in the BTS ?
Just to be sure, you can always check alarms… but IMO you need to ask a BTS expert to check the site onsite (with BTS terminal, I assume ? I don’t know much about equimment)3rd January 2009 at 13:41 #55243AliGuest
hello pix,yes u r rite,but i remember one such case so i wrote,other wise as mouf said,the problem hes facing in two sectors i think there must be some problem with respective ANCs.4th January 2009 at 18:51 #55244PixGuest
interesting.. do you remember what was so special about this case ? Because normally, abis fluctuations –> remote TC drops. So in your case, there must have been something different about those Abis fluctuations… perhaps some IDU problems, the device experiencing some software bugs?5th January 2009 at 12:40 #55245moufGuest
My problem is solved after my BTS was down and then start working the problem is solved. i note that the BTS was down not intetionally.5th January 2009 at 13:07 #55246PixGuest
Ok, there’s a trick with alcatel BTS… everytime you see something is wrong, don’t think : just lock/unlock the TRX and/or the BTS! It will solve 50% of your issues 🙂6th January 2009 at 16:22 #55247AliGuest
Agreed with pix 100%, as we have also seen hard reset the best solution to Alcatel BSS… :)?