User manual

8820IP Phone User Manual_ SIP (V1.44)

Ø Command ping

Syntax description: ping IP address

Usage: ping IP address of other NAT device

Relevant usage: In telnet window, input ping xx.xxx.xx.xx（an IP

address） and return, then the result will be displayed. If the address is

effective, “ping OK” will be seen; if the address is ineffective, nothing

will be seen. Fox example:

P:\>ping 203.93.9.57

P:\>

ping OK

P:\>ping 27.56.120.56

P:\>

Note Usually, the echo time of ping command is no more than 1 second. So if the

result is not displayed in 5 seconds, ping command is fail.

Ø Command ftp

Syntax description: ftp value

Usage: the system connects to the FTP server auto to get the

corresponding file and deal with it.

Relevant usage: ftp X

X ranged from 0 through 2:

X-0: Connect to FTP Server to get the file of updating program and

save it to the SDRAM of the phone. Then the file can be read by