Paradyne 1862 User Manual page 46

Field
Service Type:
cbr – Constant Bit
Rate
rtvbr – Real Time
Variable Bit Rate
Nrtvbr – Non Real
Time Variable Bit
Rate
Ubr – Unspecified
Bit Rate
46
Description
Supports real-time applications requiring a fixed amount of
bandwidth. The applications produce data at regular
intervals such as a video stream. The user can specify how
much bandwidth they wish to reserve.
Supports time-sensitive applications such as voice. In these
applications the rate at which cells arrive are varied.
Supports applications that have no constraints on delay and
delay variation, but still have variable-rate and burst traffic
characteristics.
Best effort service that does not require tightly constrained
delay and delay variation. UBR provides no specific quality
of service or guaranteed throughput.
1862 VoIP IAD User's Guide