Table of Contents
Advertisement
Integrator's Reference Manual for Polycom HDX Systems
notification:callstatus:outgoing:45: Polycom Austin:
192.168.1.101:connected:384:0:videocall
Note: The call ID number (45) is an example of the response. The Call ID
number depends upon the call type.
Comments
When searching for feedback from the dial command, expect to see the set of described strings as many
times as there are channels in the call.
When initiating a multipoint call or adding multiple sites to a multipoint call over ISDN, you must be sure that
the total call rate does not exceed the bandwidth of the ISDN interface. Otherwise, one of the calls may not
connect.
For example, the total ISDN bandwidth for a T1 line is 1544 kbit/s. Thus, making the following five calls in
succession violates the ISDN bandwidth rule, because the total ISDN bandwidth would require 1920 kbit/s
(1920 =
384 * 5), and one of the calls may not connect:
● dial manual 384 5551212
dial manual 384 5561212
dial manual 384 5571212
dial manual 384 5581212
dial manual 384 5591212
Similarly, making the following two calls in a multipoint call where sites 1, 2, and 3 are already connected at
256 kbits/s each violates the ISDN bandwidth rule. This is because the total ISDN bandwidth required
becomes 1792 kbits/s (1792 = 256 * 3 + 512 * 2), and one of these two new calls may not connect:
● dial manual 512 5581212
dial manual 512 5591212
Note: The ISDN bandwidth rule is not applicable to IP calls and only applies when multiple ISDN dial
commands are issued in succession without waiting for the active call notification (i.e., active: call[36]
speed[128]) between dial commands. Adding single calls to a multipoint call and then waiting for the active
call notification does not break the rule, because the system downspeeds calls to meet the required ISDN
bandwidth limitations.
See Also
Refer to the
callstate
command on page 171. You can use callstate register to obtain updated information
on the status of a call. For example, when using the dial manual to place a call, callstate register can tell
you when the call is connected.
Polycom, Inc.
System Commands
205
Advertisement
Table of Contents
