Computerized directory assistance |
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Recommendation ITU-T E.115 specifies the protocol, called the directory assistance protocol, to be used for directory assistance information exchange among service providers. This supports assistance/inquiry as part of the international telephone operator service. This Recommendation also gives a description of the principles and procedures to be followed in interconnecting different national computerized directory assistance services. It specifies two versions of the protocol. Version 1 specifies basic functions, while version 2 of the protocol provides enhancements and uses HTTP as the underlying service. |
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Citation: |
https://handle.itu.int/11.1002/1000/9423 |
Series title: |
E series: Overall network operation, telephone service, service operation and human factors E.100-E.229: International operation E.104-E.119: General provisions concerning Administrations |
Approval date: |
2008-05-29 |
Approval process: | AAP |
Status: |
Superseded |
Maintenance responsibility: |
ITU-T Study Group 17 |
Further details: |
Patent statement(s)
Development history
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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E-100 series Suppl. 1 (02/2019)
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ITU-T E.100 series – Framework of disaster management for disaster relief system
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In force
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here
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here
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here
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E Suppl. 11 (06/2020)
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Criteria for M2M/IoT-related assignments under Recommendation ITU-T E.164.1 and Recommendation ITU-T E.212 Annex A
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In force
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here
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here
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here
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E.115 (2008-05)
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Index of all ASN.1 assignments defined in this Recommendation.
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Click
here
to download all the modules of this Recommendation (zipped archive)
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Click here to download all the modules needed to compile this Recommendation (zipped archive)
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Title |
Approved on |
Download |
Radio fequency-level based single-number indicator for mobile network usefulness for a given range of applications
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2023
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here
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Technical Report on analysis of ITU-T F.930
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2020
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here
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Identify call location for emergency service
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2020
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here
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