1.   Challengers and scared incumbents, he said, are frequent callers.

2.   For frequent long-distance callers, the difficulties may be outweighed by the savings.

3.   For frequent long-distance callers, such difficulties may be outweighed by the savings.

4.   In addition, subscribers receive a personal code that will allow frequent callers to pass through Privacy Manager altogether.

5.   Robinson, his most frequent caller, bluntly challenged him.

6.   The study also said the risk doubled with motorists who are frequent callers.

7.   They even recognize frequent callers and respond according to your wishes.

8.   More frequent callers might opt for other calling plans, which typically have a monthly fee or minimum use charge.

9.   Some are offering discounts for frequent callers.