Change timer T305 and T308 in E///

[auto_art]

Hi firends coud u send your analysis after change T305 from 30 to 2 sec an T308 from 30to 1 sec.your support will be highly appreciable.

my busy drops goes 5000 from 7500.

[moh424]

The observed improvement in Huawei BSS after reducing timers values is much higher than the one observed in E*******, any ideas?

[madeira]

Only a doubt, the T200 timer should be set to a value less than the T305 and T308. But what part of the T200 should be greater than the T305 and T305 would be the SACCH, TCH?
Another doubt in the case of the final value of the T200 timer must be done by multiplying the value by SDDCH n200?

[gwood]

@auto_art an friends i cant found this commands in alex? To change these timers i need to change the firmware of MSC?
Do you have the fallback script?

[madeira]

Gentlemen,

I would like to take a doubt. On my network changed the parameters T305 and T309 using the default value of Radio link. If I change the radio link to the maximum value using the values ​​of T305 and 309 would increase the number of drops?

The default value of the counters in the MSC currently allows low drop call is performing the disconnection before the end of the MS T200 correct?

[auto_art]

Gentlemen,

I would like to take a doubt. On my network changed the parameters T305 and T309 using the default value of Radio link. If I change the radio link to the maximum value using the values ​​of T305 and 309 would increase the number of drops?

The default value of the counters in the MSC currently allows low drop call is performing the disconnection before the end of the MS T200 correct?

wee keep the default one for E/// & it worked fine. it is around 240ms for t200 n times.

[moh424]

Exactly, setting a low value for these timers would lead to decreasing the call drop rate as it will hide some drops, I consider it as fake improvement

[Shakeel_15]

T305 &T308 are MSC Timers.

Actually some optimizers set their values very low 2 and i sec respectively to reduce call drop due to T200.

This means these timers expires before t200(N200+1) expiry and shows improvement on radio side.

BR

hi
one of my collegue changed timer T305 and T308 in E/// from 30s to 1s.

and he has observed in improvement in tch rop rate from 0.9 to 0.8 at nbh.

pl share your views.

[vipbinh]

anyone please seed the attachment to my email : still_a_lone@yahoo.com.
I haven't enough reputation to down it,yet. I need it very much.
And how to check this timer on MSC of Huawei and Erics vendor???

[haroonazhar]

Hi pl go through attachement..it is detailed explaination.

i recieevd it from E*******.!

it includes commands to change too..!

Please send n email of this


haroonazhar@yahoo.com

thanks