Placing Calls; Ip Address Entry - 3Com NBX 100 Administrator's Manual

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PPENDIX ONNE

Placing Calls

IP Address Entry

X H.323 G
TIONS ATEWAY
c Select Network or Direct Call, after using.
d Click Call.
e Confirm the connection using a speaker or headset and microphone.
9 To end the call, click the "hang-up" icon.
Interpreting the Results
The NetMeeting check has three possible outcomes:
No communication with remote NetMeeting.
Wrong IP address.
Firewall is blocking call setup (TCP) packets.
Call rings remote end and it answers, but there is no audio.
Faulty connection to a microphone, speaker or both.
Firewall is blocking audio (UDP) packets.
Calls work in one direction, but not in the reverse direction. Place a
call to determine which firewall is blocking TCP traffic. Once you
determine this, it is the remote firewall that is blocking the traffic.
You can place an outgoing H.323 call from an NBX system in one of
several ways, as discussed in this section.
See Chapter 2 for information on how to use the dial plan to set up the
NBX system to use H.323 ports.
Depending on how you set up the dial plan, the most convenient way to
place a call to a new number is to dial a ConneXtions extension list
(configured within the dial plan), which provides a connection to an
available H.323 port. If a port is available (not busy), enter the extension
and IP address from the telephone key pad. Use the
the four "octets" in the IP address, and then press the # key to "dial
now."
key to separate
*