Networks
Polycom, Inc. 2–35
Connecting to an Analog Phone Line
You can connect an analog phone line to a Polycom HDX 9000 series, Polycom
HDX 8000 series, Polycom HDX 4000, or Polycom HDX 4000 HD system to
make regular telephone calls with the system or to add audio-only participants
to video calls. The first analog phone or Voice Over ISDN connection does not
count toward the number of sites in a call. Additional analog phone or Voice
Over ISDN connections, as well as all H.323 audio-only and SIP audio-only
connections, do count toward the number of sites in a call.
Crypto Resync Allows a Polycom HDX system connected to
cryptographic equipment to signal when it loses video
synchronization during a call. The cryptographic
equipment can then resynchronize with the far site.
Use RTS Signal for
Resync Pulse
Allows the system to send the resynchronization pulse on
the RTS signal. Select this setting if your data
communications equipment uses the V.35 or RS-449
capability of the serial V.35/RS-449/RS-530 network
interface.
Note: When you select this setting, the RTS no longer
functions as the Request To Send signal.
Time Between
Pulses (sec)
Specifies whether the system should set the time between
resync pulses automatically or use the number of seconds
you enter.
Pulse Width
(millisec)
Specifies whether the system should set the pulse
duration automatically or use the number of milliseconds
you enter.
Enable Broadcast
Mode
Enables support for H.331 broadcast transmissions from
the Polycom HDX system.
Broadcast mode enables the system to send video and
audio to many other systems, such as large satellite
networks.
Enable
People+Content
Enables People+Content for broadcast mode.
Video Format Specifies the resolution at which video is transmitted.
Video Protocol Specifies the protocol used to transmit video. Choose the
lowest protocol supported by all systems in the
conference.
Audio Protocol Specifies the protocol used to transmit audio.
Frame Rate Specifies the frame rate to use.
Setting Description
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