Nortel Networks LIP-6830 - Manual (Page 38)

LIP-6812 & LIP-6830 Installer Guide
Rev 01.04 32 June 07
3.5.2.5 Local UDP Port
The Local UDP Port defines the port, normally 5060, the LIP Phone will use to send and receive
SIP signalling packets. Particularly when behind a firewall, in some instances the normal port
may not be availabe and a different port can be defined.
To set the Local UDP Port:
1) Press the button. If the LCD Menu is locked, use the unlock procedure (refer to
Section 3.3 Lock/Unlock Configuration).
2) Press button, or move cursor to 2.SIP Configuration using the [Next]/[Prev] Softkeys,
and press the [ OK ] Softkey.
3) Press button, or move cursor to 7.Local UDP Port using the [Next]/[Prev] Softkeys,
and press the [ OK ] Softkey.
4) Input the Backup Proxy Port for the LIP-6812/LIP-6830 using the Dial pad.
5) Press
the [ OK ] Softkey to save your Configuration.
6) Press the button to exit from the menu.
Changing the Local UDP Port requires a reboot of the LIP-6812/LIP-6830; when you
leave the menu, you will receive a Reboot notice.
3.5.2.6 RTP Start Port
When a SIP call is established, digitized voice signals are sent and received in Real-Time
Protocol (RTP) packets. The port used for RTP packets is usually 23000, but a different port
may be defined.
To assign an RTP port:
1) Press the button. If the LCD Menu is locked, use the unlock procedure (refer to
Section 3.3 Lock/Unlock Configuration).
2) Press button, or move cursor to 2.SIP Configuration using the [Next]/[Prev] Softkeys,
and press the [ OK ] Softkey.
3) Press button, or move cursor to 8.RTP Start Port using the [Next]/[Prev] Softkeys, and
press the [ OK ] Softkey.
4) Input the RTP Start Port for the LIP-6812/LIP-6830 using the Dial pad.
Local UDP Port
5060
[ » ] [CLR ] [ OK ]