GSM Mobile Call Termination - 2G Technologies - Mobile Communication System

TL;DR

Explaining the process of how a mobile phone call is terminated in the GSM network from PSTN, covering various steps.

Transcript

click the bell icon to get latest videos from equator hello friends in this lecture we'll study how a mobile phone call is being terminated in the GSM that is the call is originated from other networks like PSTN and it is given to a mobile station various steps show you how the call procedure takes place in this diagram we can see various steps whi... Read More

Key Insights

• 📱 Mobile phone call termination in GSM involves steps like MS ISDN, gateway MSE, HLR, VLR, and paging.
• 🚉 HLR triggers VLR to find roaming number for locating the mobile station during call termination.
• 📱 Location Area Identity (LAI) helps identify the active cell of the mobile phone for efficient termination.

Questions & Answers

Q: How does a mobile phone call get terminated in a GSM network?

A mobile phone call in GSM is terminated by going through steps involving MS ISDN number, local exchange, gateway MSE, HLR, VLR, and paging, ensuring the call reaches the intended mobile station.

Q: What role does the HLR play in the mobile phone call termination process?

The HLR triggers the VLR to find the roaming number of the mobile station, essential for locating the user's active cell during call termination in a GSM network.

Q: Why is the Location Area Identity important in the call termination process?

The Location Area Identity (LAI) helps identify the cell where the mobile phone is active, aiding in efficient call termination and ensuring proper connection to the PSTN network.

Q: How does the mobile station respond to the paging during call termination?

Only the intended mobile station responds to the paging using an appropriate base station subsystem, establishing the connection for the call to proceed in the GSM network.

Summary & Key Takeaways

• Mobile phone call termination in GSM network explained.

• Call originates from PSTN, goes through various steps.

• Process involves MS ISDN number, local exchange, gateway MSE, HLR, VLR, and paging.