Gti

Gti is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Telemarketing Equipment & Services
• Telephone Answering Service Referrals
• Call Centers

North American Industry Classification System (NAICS) Categories:

• Other Electronic Parts And Equipment Merchant Wholesalers > Telephone & Telegraphic Equipment > Telemarketing Equipment
• Wired Telecommunications Carriers > Call Centers
• Telephone Answering Services > Business Information & Referral Services > Telephone Answering Service Referrals
• Telemarketing Bureaus > Telephone Answering & Messenger Services > Telemarketing Services

Standard Industry Classification (SIC) Categories:

• Telephone Communications, Except Radio > Call Centers
• Electronic Parts & Equipment > Telephone & Telegraphic Equipment > Telemarketing Equipment
• Business Services, Nec > Telemarketing Services
• Business Services, Nec > Business Information & Referral Services > Telephone Answering Service Referrals