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Mobile Device Connectivity (Your phone is a radio (The firmware can be…
Mobile Device Connectivity
Your phone is a radio
Real time operating system
Everything happens very quickly as needed
Has it's own firmware and memory
Quite proprietary
The firmware can be updated
Over the air (OTA)
Invisible to the end user
Baseband radio provessor
A network interface for your radio
This isn´t WiFi or Bluetooh
Phone updates
PRL updates
Contains radio bands, sub-bands and service provider IDs.
Allows you phone to connect to the right tower
CMDA networks
I.e. Verizon, Sprint
Can be updated over the air (OTA)
Preferred Roaming List
PRI updates
Radio settings ID numbers, network codes, country codes, etc
Also updated over the air
Product Release Instructions
IMEI and IMSI
IMEI
Every phone has a different IMEI
Identifies a physical mobile device
Can be used to allow or disallow access
International Mobile Station Equipment
IMSI
Identifies the user of a mobile network
Can be provisioned in the SIM card
Swap the SIM to move between phones
International Mobile Subscriber Identity
Wireless networks
Android
Settings/Wireless and network settings
Windows Mobile
Settings/WiFi
iOS
Settings/cellular
Enable and disable cellular, WiFi and Bluetooth independently
Airplanes, conserve battery
Bluetooth
Connect different devices
Mouse, keyboard, headset, computer, automobile, speakers
Once paired, devices work together
Connect and disconnect automatically
Short-range personal area network (PAN)
About 10 meters
Bluetooth pairing process
Select discovered device
Many devices may appear
Enter or confirm PID
Should be the same on both devices
Set devices to discoverable mode
May require key sequence on Bluetooth device
Test connectivity
Devices should now communicate
Eanble Bluetooth on both devices
Android an iOS
Settings/Bluetooth
Wireless/Cellular data network
Tethering
You may have to pay extra phone charges
We're gonna make you popular
Turn you phone into a WiFi hotspot
Airplane mode
One button turns off all radios
Cellular, WiFi, Bluetooth, NFC, etc.
You can re-enable individual features without enabling cellular features.
Useful when the airplane has WiFi.
VPN
Integrated into the phone OS
No additional software required
May require some additional setup
Detailed configuration settings
Turn your phone into a VPN endpoint
Important for secure communication
May support multifactor authentication
RSA SecureID.