Free Erlang traffic calculators

The world's first online Erlang traffic calculators

Telecom Traffic Online
  Home | Free calculators | Products | Tech. papers | Forum | About us
A-Z termination - click here
A-Z termination - CLICK HERE
A-Z termination using H.323 and SIP
A-Z termination
  • VoIP softswitch

    DUAL Softswitch is a complete Voice over IP switching and billing solution.  Flat monthly rate.

    Web control panels; Least Cost Routing; Excel tariff uploads; SIP and H323 support.

    H323 SIP softswitch >>

  • VoIP calling

    Premium quality termination for wholesale carriers with their own VoIP switch.

    44Direct >>

    Our lowest rates for wholesale carriers with their own VoIP switch.

    44Mobile >>

    Our unique online callshop billing system.

    Bill My Calls >>

1 E1 in erlang

Bijoy - 5th April 2010  (07:09 GMT)

Hi Amit
1 E1 can support upto 15 TRX in TDM mode.

Considering a site with 5+5+5 conf,with 35 TCH per cell,you can have an Equipped Traffic of 26.4 *3= 80 Erl approx.

If you use HDLC,this figure will be higher.


amit dobhal - 3rd April 2010  (18:08 GMT)

would like to one E1 can contain how mcuh erlang traffic ??

thanks for answer in advance


pix - 27th August 2007  (14:20 GMT)

Da architect,

Maybe i'm wrong, but this might be the case when there are 2 abis links (main abis and secondary abis). One TS is reserved for communication with the second abis... but i might be wrong. I've no time to check it out, sorry :)

RLTO - 27th August 2007  (11:51 GMT)


it is according to your required blocking probability you need.

one may use;
1 TRX => 2 TS PCM
& Other use;
1 TRX => 2.25 TS PCM
Or even 2.5.

which is your option ??

Da Architect - 27th August 2007  (10:55 GMT)

ts 0 for framing and ts 16 for signalling, sometimes in alcatel they use one more ts for signalling, which make us left with 29 TS for dimensioning.

confirm please!

pix - 26th August 2007  (07:27 GMT)

of course, they have a "use", but they're not useful for us, in the dimensioning.

Optimizer - 26th August 2007  (06:19 GMT)

the remnant two are also useful [signaling].

pix - 23rd August 2007  (19:35 GMT)

but only 30ts are useful...

Pingo - 23rd August 2007  (14:34 GMT)

32 TS

Pix - 17th August 2007  (08:44 GMT)


This post answers a thread that has been closed (too many posts maybe ?).

In 1 E1, you have 30 timeslots (= 30 channels). Therefore the offered traffic should be about 16.6 erl (with a blocking rate of 0.1%).

Other messages

Other messages: [<<Previous 10]

Post a reply to this article

Name Enter your name.
Message Enter your message.
Email Optional -  If you enter your email address in this box, then you will automatically be notified if anyone replies to your message.  Your email address will only be published if you pay to post this message.
Please confirm you are human.
Press the button to post your message.
Home | Free online calculators | Products | Technical papers | Forum | Contact us | About us

Last modified: 17 May 2017

Copyright 2017. All rights reserved.