Network Settings
41-001160-04 Rev 02, Release 2.5
4-65
Configuring Network and Session Initiation Protocol (SIP) Features
RPORT
The Session Initiation Protocol (SIP) operates over UDP and TCP. When used
with UDP, responses to requests are returned to the source address from which the
request came, and returned to the port written into the topmost “Via” header of the
request. However, this behavior is not desirable when the client is behind a
Network Address Translation (NAT) or firewall.
A parameter created for the “Via” header called “
Rport
” in RFC 3581, allows a
client to request that the server send the response back to the source IP address
and
the port from which the request came.
When you enable “Rport, the phone always uses symmetric signaling (listens on
the port used for sending requests.)
An Administrator can configure “
Rport
” using the configuration files or the
Aastra Web UI.
Configuring Rport Using the Configuration Files
Use the following procedures to configure Rport on your phone.
Note:
Configuring the Rport parameter is recommened for clients behind
a Network Address Translation (NAT) or firewall since this parameter
allows a client to request that the server send the response back to the
source IP address and the port from which thre request came.
Configuration Files
For specific parameters you can set in the configuration files, see Appendix A, the section,
“Rport Setting”
on
page A-33.
Summary of Contents for 67 Series
Page 4: ......
Page 16: ......
Page 20: ......
Page 72: ......
Page 92: ......
Page 306: ......
Page 686: ...Operational Features 5 380 41 001160 04 Rev 02 Release 2 5 IP Phone Administrator Guide ...
Page 746: ......
Page 758: ......
Page 1062: ...Troubleshooting Parameters A 276 41 001160 04 Rev 02 Release 2 5 IP Phone Administrator Guide ...
Page 1066: ......
Page 1100: ...Sample Configuration Files C 34 nnn nnnn nnn IP Phone Administrator Guide ...
Page 1102: ...Sample Configuration Files C 36 nnn nnnn nnn IP Phone Administrator Guide ...
Page 1108: ......
Page 1112: ......
Page 1116: ......
Page 1130: ......
Page 1138: ......
Page 1139: ......