News GSM SOLUTION KARACHI By rizwan - February 28, 2012 Company Name: GSM SOLUTION KARACHI contact person: – Mr. USMAN Mailing Adress: D -85 / A, S. I. T. E, KARACHI. Mobile Number : 0345-2306540 / 0321-8940943 Ptcl Phone Number: 021-2569193 021-2567158