Narrower Terms (17)

• Call blocking
• Caller ID telephone service
• ▶ Cell phones
• Eccard telephone
• Local loop (Telephony)
• Local telephone service
• ▶ Long distance telephone service
• Military telephone
• Pay-per-call telephone services
• Public telephones
• ▶ Radiotelephone
• Rural telephone
• Sound-powered telephones
• Telecommunications Relay Service
• ▶ Telephone calls
• Telephone directory assistance
• Video telephone