Phone 17 - Part 1 is a mission in Grand Theft Auto 1 level 4, Tequila Slammer, given to The Protagonist by El Burro. The mission is available from the Top Phone in North Telephone Hill in San Andreas.
Once the mission is triggered, El Burro tells the protagonist that he has a job for them, and says to head to Central Eagleside and answer the phone there. Once there, the protagonist is told that someone is using Coaches to bring people across the border illegally. Burro is unhappy about this as it is eating into his profits. The protagonist is ordered to collect a Rocket Launcher which El Burro had left in an alley in northwest Woodside. The protagonist must take the buses out of service.
Five of the buses are located in a car park in South Aye Valley. Once they have been taken care of, El Burro will tell the protagonist that there are still two more buses out and about. These buses are found traveling along the highway, one in northwest Eagleside and one in southwest Sunview. Once all seven Coaches have been destroyed, the mission is complete.
It is not necessary to use the rocket launcher to destroy the Coaches. It does not matter how they are destroyed, they can be also driven into the water.
The player is awarded 50,000 points and +1 score multiplier for completing the mission.