Cisco Systems D14659.03 Network Router User Manual


 
Configuring general ISDN settings
Cisco TelePresence ISDN Gateway 2.1 Online help (Printable format) 76 of 135
codecs allowed
codecs that endpoints calling through
the ISDN Gateway may select.
Content allows a separate
presentation stream alongside the
video stream.
themselves negotiate which content
codecs to use during a call. Use these
options if you wish to restrict the
choices available.
Note: The ISDN Gateway does not
advertise content at bandwidths of
128kbps or lower. Cisco recommends
a total call bandwidth of at least
384kbps for a video call with content.
Prohibiting content codecs may
prevent endpoints negotiating a
compatible codec; use these options
only if you experience a particular
problem when using a certain codec
with the ISDN Gateway. If the IP
endpoint is a Cisco TelePresence
MCU or IP VCR, consider disabling the
codec on that device instead.
ISDN multipoint settings
Field
Field description Usage tips
H.243 floor and
chair control
allowed
Enables or disables the passing
through of chair and/or floor control
requests.
The ISDN Gateway passes any
floor/chair control requests received. It
does not process them in any way.