| Business | Phone |
| Gnd Telephones Po Box 4333, San Clemente 92674 | (949) 498-7140 |
| Alta Information Inc 1030 Calle Cordillera, San Clemente 92673 | (949) 429-7575 |
| Call Control Systems 3027 Calle Frontera, San Clemente 92673 | (949) 492-2838 |
| First Impulse 1010 Calle Cordillera # 106, San Clemente 92673 | (949) 429-7340 |