Telephone services [2233 companies]
International telephone calling services [279 companies]
Recording services for telephone messages and music [114 companies]
Paging services [202 companies]
Video conferencing/teleconferencing services [417 companies]
Telephone conferencing services [93 companies]
Radio communication services [225 companies]
Radio-maritime accounting (tele-accounting) services [24 companies]
Payphone card network operators [120 companies]
Call centre operators [1150 companies]
Voice mail services [299 companies]
Facsimile (fax) services [724 companies]
Telex services [252 companies]
Telephone answering services [458 companies]
Audiotex services [102 companies]
Value added telephone services [458 companies]
Telephone directory enquiry services [160 companies]
Multimedia message services (MMS)/Multimedia instant messaging services [39 companies]
Short message services (SMS)/text messaging services [71 companies]
Internet telephony service providers (VOIP) [132 companies]
Telephone services, satellite [14 companies]
Voice transmission via power lines (voice over power line) [23 companies]
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Telephone services (Worldwide)
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Overview of the categories > Telecommunications > Telecommunication services > Telephone services (Worldwide)
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