explain call flow in gsm???

Question Posted / rohit kumar

2 Answers
2702 Views
Nokia Solutions and Networks, TCS, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

explain call flow in gsm???..

Answer / rohit

ms - bts - bsc -trc - msc - gmsc - pstn
| |
hlr vlr eir gmsc for other network

Is This Answer Correct ?

2 Yes

0 No

explain call flow in gsm???..

Answer / rohit

When we press Call button in cellular device (green button) then mobile unit is connected to BTS . BTS use circuit switching random access technique o grant the access and forward the information about originate the call to MSC. In mean time MSC will check the required mobile power and billing scenarios by using SACCH (slow associated control channel). after checking all the required credentials MSC transfer the call o PSTN then they allocate a physical channel to the mobile unit.
and in case o receiving call BTS will send a IMSI paging signal to all substations .

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electronics Communications Interview Questions

how can trace the fault in any PCB? what are the steps to find problem & to troubleshoot?

0 Answers

why we call vestigial side band(VSB) as c3f?

0 Answers CRPF,

What will be the call flow in case user doesn't answer the call

0 Answers Verizon,

for small size, high frequency, the most common core material is a)air b)ferrite c)powdered ion d)steel