Billion 810VGTX Router
Page | 49
3G
TEL No.: The dial string to make a GPRS / 3G user internetworking call. It may be provided by your mobile service
provider.
APN: An APN is similar to a URL; it is the unit makes a GPRS / UMTS call. The service provider is able to attach
anything to an APN to create a data connection. Requirements for APN assignment varies between service providers.
Most service providers have an internet portal which they connect a DHCP Server to, giving you access to the internet
i.e. Some 3G operators use the APN ‘internet’ for their portal. The default value of APN is “internet”.
Username: Enter the username provided by your service provider.
Password: Enter the password provided by your service provider.
Authentication Type: Manually specify CHAP (Challenge Handshake Authentication Protocol) or PAP (Password
Authentication Protocol) if you know which authentication type the server is using (when acting as a client), or the
authentication type you want the clients to use when they are connecting to you (when acting as a server). When using
PAP, the password is sent unencrypted, while CHAP encrypts the password before sending, and also allows for
challenges at different periods to ensure that an intruder has not replaced the client.
MTU: Maximum Transmission Unit. The size of the largest datagram, excluding media-specific headers, that IP will
attempt to send through the interface.
PIN: PIN stands for Personal Identification Number. A PIN code is a numeric value used in certain systems as a
password to gain access and authentication. In mobile phones a PIN code locks the SIM card until you enter the correct
code. If you enter the PIN code incorrectly into the phone 3 times in a row, then the SIM card will be blocked and a PUK
code will be required from your network service provider to unlock it.