VBRRT - What does VBRRT stand for? The Free Dictionary
References in periodicals archive
The latest version of CityStream supports popular ATM Services -- CBR, UBR, and VBRrt
(constant, unspecified and real time variable bit rates) -- and can support any combination of clear channel DS3 and ATM DS3 in the same multi-port DS3 module.
Ensuring QoS for multiple VCs on a DSL local loop requires that both the central office DSLAS and the IAD at the customer premise support the constant bit rate (CBR) and variable bit rate real-time (VBRrt) ATM classes of service.
Because the voice VCs are CBR and VBRrt connections, each voice call is guaranteed bandwidth to ensure quality.