The present disclosure is drawn to an ink sets, printed articles, and related methods. In the example context of evaluating packet switched telephony service, the present invention eliminates the need to perform subjective tests to characterize each combination of codec type and transmission protocol. Vectors including these genes, transfected host cells and transformed host cells are provided. After use the bellows may be collapsed by twisting and folding for convenient storage. A clamp located on the bottom of the pole holds a coaxial cable connector for the antenna. The male rod 4 is provided with a slide portion extended as the tire is expanded.