The following table has listed the well-known
application and service port:
Server
Protocol
Service Port
WEB Server
TCP
80
FTP Server
TCP
21
Telnet
TCP
23
NetMeeting
TCP
1503
、
1720
MSN
Messenger
TCP/UDP
File
Send:6891-
6900(TCP)
Voice:1863
、
6901(TCP)
Voice:1863
、
5190(UDP)
PPTP VPN
TCP
1723
Iphone5.0
TCP
22555
SMTP
TCP
25
POP3
TCP
110
7. Why can’t I use my 3G Modem Card to connect
the Internet?
a.
Please make sure that you have inserted a SIM
card into your 3G Modem Card, you have enabled
the ISP 3G data Internet business, and you can
use your 3G Modem Card to access the Internet
by connecting it to the computer directly.
b.
Please make sure that your 3G Modem Card is
connected to the Router’s USB port well.