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ISDN
noun /ˌaɪ.es.diːˈen/Definition
(Definition of ISDN noun from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)
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You are looking at an entry to do with Communications - by telephone, but you might be interested in these topics from the Technology topic area:
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SMART Thesaurus: Communications - by telephone
Synonyms and related words:
- 0800 number noun
- caller ID noun
- collect adjective, adverb
- dialling tone noun
- Directory Enquiries noun
- drunk-dial verb
- Freefone noun
- get through phrasal verb
- GSM noun
- hands-free adjective
- hang up phrasal verb
- operator noun
- ring off phrasal verb
- ringtone noun
- screen verb (EXAMINE)
- tel. noun
- telecoms noun
- toll-free adjective
- tone noun (PHONE NOISE)
- voicemail noun
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