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Call flow in gsm

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  • GSM
  • Mobile
Last response: in Technologies
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April 25, 2009 7:16:10 AM

hi,


Tell me how the call flow between mobile to mobile and pstn to mobile in
a Gsm network and what is the protocal used.


bye...

More about : call flow gsm

September 9, 2009 5:01:36 PM

PSTN to Mobile:

1. PSTN will initiate the call and GMSC will looking for the MSRN of called party
PSTN-----[MSISDN]--->GMSC

2. GMSC will forward the called party's MSISDN to get the routing information from concern HLR.
GMSC-----[MSISDN]----->HLR
3. HLR will forward the IMSI to concern MSC to get the MSRN
HLR------[IMSI]-----MSC

4. MSC will send the MSRN back to HLR as acknowledge
MSC-------[MSRN]----->HLR
5. HLR will send the MSRN to GMSC
HLR------[MSRN]----GMSC
6. GSMC will communicate with MSC to set the call immediately
GMSC----[MSRN]----MSC
7. MSC will route the call through BSC , BTS to MS.
MSC---------------->BSC
BSC---------------->BTS
BTS---------------->MS

please let me know if you any more queries.

Md. Isme Azam
Engineer, Core Network Operation
An Orascom Telecom Bangladesh Ltd

December 16, 2010 5:39:16 AM

Hi,

Can you please tell me about the KPI parameters?

i want to know about PCH(Paging channel) and how it works.
!