Specifications

Settings 143

Context in the dial plan for outbound calls from this client

Disallow/Allow:

The "allow" and "disallow" allow you to fine tune the codec selection beyond the initial bandwidth

selection on a codec-by-codec basis.

17.3.4 H323

H323 is an ITU-T standard for transferring multimedia video conferencing data over packet-switched

networks, such as TCP/IP. There is a LAN standard for high-quality video, and an Internet standard for

lower-bandwidth video over lines as slow as 28.8Kbits

Port:

This sets the port that H323 will bind to. The default H323 port number is 1727. It is recommended that

this value not be altered in general.

Bind Address:

This allows you to bind H323 to a specific local IP address instead of binding to all addresses. This

could be used to enhance security.

Context:

Context in the dial plan for outbound calls from this client

DTMF Mode:

Dual Tone Multi-Frequency, the system used by touch-tone telephones. DTMF assigns a specific

frequency (consisting of two separate tones) to each key so that it can easily be identified by a

microprocessor.