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# Erlang Formula

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Viewing 15 posts - 1 through 15 (of 181 total)
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• #32860 Reply
Bjørn
Guest

hello

is there a web page with the erlang formula?
What does 2,5 Erlang C tells me?

#32861 Reply
koni surya
Guest

hi,is there a web page with the erlang formula?

#32862 Reply
Steve Cain
Guest

Hi,

I am looking for the Erlang B formula and the theory behind it. I would be grateful if anyone who has this information to let me know.

Thanks,

#32863 Reply
Jose Quintero
Guest

Steve,

The erlang B formula is well describe in the Book Digital telephony form Jhon Bellami.

Bassicaly is a poisson formula.

if you want the formula I am be able to provide it to you.

Regards

#32864 Reply
Rommel
Guest

Erlang C is a model where blocked calls are queued. This formula is traditionally used in call center environments.

2,5 Erlangs is the amount of traffic carried/offered to traffic sensitive facilities.

In order to get usable numbers you still need GoS and delay factor.

#32865 Reply
Steve Cain
Guest

Hi Jose,

I will check out the book you mention. Meanwhile if you have the formula(ae) I would be grateful if you could send it to me at: scain@lucent.com

many thanks,

Steve

#32866 Reply
betul
Guest

really, I couldn’t see any web page About ERlang a,b,c formula.If you know could you please help me?

#32867 Reply
Chris Wood
Guest

Here are a couple of links that will give you some background to Erlang. I thought I had a copy of the formula but I can’t seem to put my hands on it right now. If I do I will post it.

#32869 Reply
betul
Guest

Rommel & Chris Wood: thank you very much.

#32871 Reply
Rommel
Guest

Or you can use the poisson function of Excel to find blocking:
=(POISSON(,,FALSE))/(POISSON(,,TRUE))

where = # of servers
= BHT load in erlangs

#32872 Reply
purwadi?
Guest

I’m student of telecommunication enggineering looking for theory about traffic in PSTN for my thesis. Does anyone know where i can find it?

Thank you.

#32873 Reply
kawfee
Guest

I have seen several addins for Excel that utilize the Erlang B model. I have downloaded and tried two different variations of the addin, and neither one seem to provide me with the answer I was looking for. Does anyone have a source for a reliable and accuarate Erlang B add in?

I need it to help calculate bandwidth when traffic and blcking are known, as well as to estimate Minutes of usage per day…

kawfee

#32874 Reply
Ruber Castro
Guest

Could anybody tell me the Poisson formula for traffic calculation?

#32875 Reply
Jose Quintero
Guest

Ruben

Give your email address to sent to you

My address is: jquintero@alcatel.com.ve

See

#32876 Reply
Arun Kumar
Guest

hi Richard Arcadi

i saw ur macro for Excel.
If u have the Excel sheet can u send me the same.
To this mail Id:daarunkumar@hotmail.com

Thank & Regards

Arun

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