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Nokia Networks RF Engineer Interview Question

I interviewed in Chandigarh (India) and was asked:
"Describe basic Call Flow of GSM/UMTS ?"
Tags: technical, telecom
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Answer

Part of a RF Engineer Interview Review - one of 223 Nokia Networks Interview Reviews

Answers & Comments

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Kindly refer notes from any book, call flow cant be explained in this block.
- Interview Candidate on Jun 9, 2012
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1.) First of all mobile+SIM should be detected by mobile station.
2.) Then it passes the signal to BTS of the area, (which is occured in BSS).
3.) Then it passes to the neareast MSC by this it is connected to HLR,VLR,AUC & OMC, (which is occur in NSS).
4.) from this it is connected to PSTN,ISDN,DATA NETWORK(this all is occur in public network)
- Akash Patel on Jun 25, 2012

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