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ITU There are 5320 products.
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ITU-T E.181
ITU-T E.181 Customer recognition of foreign tones
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ITU-T E.184
ITU-T E.184 Indications to users of ISDN terminals
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ITU-T E.213
ITU-T E.213 Telephone and ISDN numbering plan for land mobile stations in public land mobile networks (PLMN)
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ITU-T E.232
ITU-T E.232 Charging for calls to subscriber's station connected either to the absent subscriber's service or to a device substituting a subscriber in his absence
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ITU-T E.252
ITU-T E.252 Mode of application of the flat-rate price procedure set forth in Recommendations D.67 and D.150 for renumeration of facilities made available to the administrations of other countries
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ITU-T E.260
ITU-T E.260 Basic technical problems concerning the measurement and recording of call durations
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ITU-T E.261
ITU-T E.261 Devices for measuring and recording call durations
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ITU-T E.277
ITU-T E.277 Conventional transmission of information necessary for the collection of charges and the accounting regarding collect and credit card calls
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ITU-T E.300
ITU-T E.300 Special uses of circuits normally employed for automatic telephone traffic
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ITU-T E.320
ITU-T E.320 Speeding up the establishment and clearing of phototelegraph calls
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ITU-T E.330
ITU-T E.330 User control of ISDN-supported services
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ITU-T F.107
ITU-T F.107 Rules for phototelegraph calls established over circuits normally used for telephone traffic
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