Advanced Operational Features
41-001160-01, Rev 00, Releaes 2.3
6-43
Configuring Advanced Operational Features
Symmetric UDP Signaling
By default, the IP phones use symmetric UDP signaling for outgoing UDP SIP
messages. When symmetric UDP is enabled, the IP phone generates and listens
for UDP messages using port 5060.
You can manually disable symmetric UDP signaling using the IP phone’s
configuration file. When you disable symmetric UDP signaling, then the IP phone
chooses a random source port for UDP messages.
The IP phone also chooses a random source port for UDP messages if you
configure a backup proxy server, registrar server, or outbound proxy server.
An Administrator can configure symmetric UDP signaling using the configuration
files only.
Configuring Symmetric UDP Signaling Using the Configuration Files
You use the following parameter to enable or disable Symmetric UDP Signaling
in the configuration files:
•
sip symmetric udp signaling
Configuration Files
For the specific parameter you can set in the configuration files, see Appendix A, the section,
“RTP, Codec,
DTMF Global Settings”
on
page A-109.
Summary of Contents for 51i
Page 4: ......
Page 26: ......
Page 30: ......
Page 70: ......
Page 179: ...Administrator Level Options 41 001160 01 Rev 00 Releaes 2 3 3 91 Administrator Options ...
Page 180: ......
Page 644: ...Operational Features 5 352 41 001160 01 Rev 00 Release 2 3 IP Phone Administrator Guide ...
Page 712: ......
Page 976: ......
Page 980: ......
Page 1014: ...Sample Configuration Files D 34 41 001160 01 Rev 00 Release 2 3 IP Phone Administrator Guide ...
Page 1016: ...Sample Configuration Files D 36 41 001160 01 Rev 00 Release 2 3 IP Phone Administrator Guide ...
Page 1022: ......
Page 1026: ......
Page 1030: ......
Page 1133: ......