APN Settings: What Does Each Setting Do?
Found this as part of a search that lead me here:
Name (APN)
A user-chosen name to apply to this APN configuration. This name has no effect at all on the connection, and is only used as a label.
APN
Specifies the Access Point Name (APN) your device should quote when communicating with your carrier. The APN is a short string of text.
Proxy / Port
Optional fields for specifying an HTTP proxy to use for all web traffic over this connection. No longer usually required for most carriers.
Username / Password
In rare cases your carrier may require a username and password in order to access data. Usually left blank.
Server
WAP Gateway Server, a feature not usually used in modern smartphones and devices. This field should usually be left blank.
MMSC
Details of the Multimedia Messaging Service Center to use for sending and receiving of MMS messages.
MMS proxy / MMS port
HTTP proxy details to be used only for communicating with the MMSC to send and receive MMS messages.
MMS Protocol
Specifies the protocol that your device should use for sending and receiving MMS messages. Usually does not need to be modified.
MCC / MNC
Specifies the carrier network that the APN configuration should be used for. Stands for Mobile Country Code and Mobile Network Code.
Authentication type
Method used to supply your name and password to the server for your data connection. Usually not used.
APN type
Specifies which types of data communication should use this APN configuration. Different types of communication may use different configurations.
APN protocol / APN roaming protocol
For devices that support IPv6 networking, this specifies whether to enable IPv4, IPv6 or both. This can be set independently for home and roaming networks.
APN enable/disable
When having multiple general purpose APN configurations, allows you to choose which one is currently enabled.
Bearer
An optional field allowing you to exclude this APN configuration based on the communication technology (eg LTE, eHRPD) currently being used.
Mobile virtual network operator type / value
Restrict use of this APN to certain MVNOs (mobile network resellers) or subscriber accounts.
Mobile virtual network operator type / value
Restrict use of this APN to certain MVNOs (mobile network resellers) or subscriber accounts.