Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Telecommunication System Corporation ← View details 1001 West 17th Street D, Costa Mesa, CA 92627 +1 949-650-7060