[ complete issue ]
- YIPL 15 - page 1
- blue boxing as protest
- YIPL 15 - page 2
- a sure cure for message units
- build a T network for fun and profit
- destructory assistance
- reader supplied information
- YIPL 15 - page 3
- 1973 credit code
- british phone system rigged for free calls
- captain crunch pleads no contest