Student or Learner
What does "the bandwidth adaptive calls" mean? Does it mean those calls which are adaptive to bandwidth?
Here is a sentence where you can find an example for it:
"The allocated bandwidth for each of the bandwidth adaptive calls is decreased with the increase of traffic load just after the call arrival rate of 0.4 calls/s to admit more calls. The conversational voice calls are assumed to be bandwidth non-adaptive. Therefore, the system always provides constant bandwidth for each of the existing voice calls."
Yes. You can't just adapt the bandwidth on a voice call, because you'll distort the voice (which is already woefully distorted by the reduced bandwidth imposed by the 'last mile' of copper wire).