- This topic has 75 replies, 1 voice, and was last updated 2 years, 4 months ago by Gaurav.
30th May 2010 at 13:56 #38122Sineesh CGuest
How we can calculate Erlangs ?
Suppose we have 35 channels.
Blocking probability is 0.02
As per theory(Erlangs B Calculation)
Erlangs is 26.4.
How it is possible?
My doubt :
We have 35 resources or Channels.If all resources are using continuously for one hour, it is 35 Erlangs. If we are considering blocking of .02,the available Capacity should more than 35 Erlangs. Is it?30th May 2010 at 13:59 #38123Sineesh CGuest
Sorry.The trailing information is regarding other subject.17th June 2010 at 16:20 #38124A.A MalikGuest
as a reply of your first question that how an outbound roamer will select correct VPLMN when there are many choices.
The answer is:
When subscriber is allowed for International Roaming, the GT (Global Title) of VPLMN MSC is added in subscriber’s HLR of HPLMN in “IMSI->GT translation” section.
On very first LU (Location Update), the request is forwarded by VPLMN network to HPLMN’S HLR and only correct MSC is authenticated whose GT is present in HLR.
It will resolve your query hopefully!18th June 2010 at 08:38 #38125daneGuest
HOW TO CHECK THE ECHO CANCELLER IN ERICSSON MEDIA GATEWAY?20th June 2010 at 02:56 #38126Jahangir AlamGuest
Do any one have any idea regarding how one roamer get one roaming network coverage out of others? What about the selection criteria by default? Although we know some mobile give option but what happens if not get any option18th September 2010 at 08:21 #38127MonalisaGuest
What is the cause of outgoing call issue of ported in roaming prepaid Number11th October 2010 at 18:56 #38128jenish gandhiGuest
hi…i m jenish….11th October 2010 at 19:00 #38129jenish gandhiGuest
i want to know about roaming protocol and fully details of it…how it works….introduction with figure..12th October 2010 at 15:29 #38130HocsèneGuest
Call flow roaming13th December 2010 at 08:57 #38131tkGuest
call forward unconditionally, does it generate a record in the tap file? in camel..
what abt when imsi is detached?4th June 2012 at 08:58 #38132WahidGuest
for inbound roamers, the selection of PLMN depends on the roaming agreement between , but still an inbound sub can register to one PLMN at a time and that is HPLMN26th October 2015 at 15:19 #38133AbdulGuest
Hi, How to identify the voicemail trombone CDRs in TAP file. Basically how to identify the MT and its related MO CDR for call forwarding in TAP file. I want to identify the MT and MO CDRs for voicemail call forwarding when subscriber in roaming.28th October 2015 at 15:20 #38134Wallis DudhnathGuest
For Roaming, CSPs have TAP and RAP procedures in place. For cross-border routes CDRs are transferred via a Mediator.
VBR/ Wallis Dudhnath10th November 2016 at 14:20 #38135BoranaGuest
I want the flow of the CFR ( call forwarding)11th November 2016 at 10:33 #38136Wallis DudhnathGuest
Good start is with GSM TS 03.82. It has flows for CF and the different conditions, e.g. Now Reply, Not Reachable, Busy and Unconditional. Look at ETSI dot org. Note that posts with URLs are rejected by this forum.
HLR/HSS/UDC will need to be configured so that CF (with conditions) can be checked with the Roaming status.