61202800L1-1B
IQ 710
Section 6, Configuration Guides
Page 289
© 2002 ADTRAN, Inc.
IQ 710 System Manual
The next step is to program the application level traffic shaping. At this site, it was necessary to have the
ability to place eight simultaneous phone calls. Each phone call will require 25K of bandwidth. Therefore,
eight simultaneous phone calls will require approximately 80% of the total port bandwidth. Because of the
sensitivity of voice to delay, you must enable traffic shaping on the VoIP application to ensure sufficient
bandwidth and prevent lost information. The VoIP application will be displayed as RTP-I and RTP-C in
N-Formant. To configure traffic shaping, the RTP-I icon is used.
3.
Click on
A
PPLICATION
T
RAFFIC
S
HAPING
and select
RTP-I TX
under
PVC 20
in the index panel. Set
the
T
RAFFIC
S
HAPING
to
E
NABLED
. RTP in the TX direction should be programmed for a guaranteed
bandwidth of 200K and a maximum bandwidth equal to the port speed of 256K in the TX direction.
The resultant screen is shown in Figure 12.
Figure 12. Atlanta Applications TX Traffic Shaping menu