Yealink CP920, Administrator'S Manual

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Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
563
Source
Device
Source IP Source Port
Destination
Device
Destination
IP
Destination
Port (Listen-
ing port)
Protocol
Description of des-
tination port
68
DHCP
Server
IP address
of DHCP
server
67 UDP
DHCP protocol port, it is
used to obtain IP address
from DHCP server.
1024~65535
LDAP
Server
IP address
of LDAP
server
Determined
by des-
tination
device.
TCP
LDAP protocol port, it is
used to obtain the contact
information from LDAP
server.
1024~65535 NTP Server
IP address
of NTP
server
123 UDP
NTP protocol port, it is
used to synchronize time
from NTP time server.
1024~65535
Syslog
Server
IP address
of syslog
server
514 UDP
Syslog protocol port, it is
used for IP phones to
upload syslog inform-
ation to syslog server.
IP
phones
IP address of
IP phones
1024~65535 PNP Server
IP address
of PNP
server
(Default
value:
224.0.1.75)
5059 UDP/TCP
Protocol port, it is used to
obtain the URL of updat-
ing file from PNP server.
Multipaging Multipaging
65000
65001
PC
IP address of
PC
Determined
by the des-
tination
device.
IP phones
IP address
of IP
phones
1~65535 TCP
HTTP port (default value:
80)
1~65535 TCP
HTTP port (default value:
443)
SIP
Server
IP address of
SIP Server
1024~65534 UDP/TCP
SIP protocol port, it is
used for signaling inter-
action with SIP server.
IP phone
of voice
gateway
IP address of
IP phone or
voice gate-
way
2~65535 UDP
RTP protocol port, it is
used by destination
device to send or receive
audio stream.
TR-069
Server
IP address of
TR-069
Server
1024~65535 TCP
TR-069 protocol port, it is
used to communicate
with TR-069 server.
Password Issues
Restore the administrator password
Factory reset can restore the original password. All custom settings will be overwritten after reset.
Related Topic
Resetting the IP phone to Default Factory Settings
The web screen displays "Default password is in use. Please change!"
The web screen prompts "Default password is in use. Please change!" message when the default password is in
use. Click the warning message to change the password.