Development of wideband handset for high quality IP telephone service trial

Author

Okamoto, M. ; Noguchi, K.-I. ; Hiwasaki, Y. ; Haneda, Y.

Author_Institution

NTT Service Evolution Labs., Yokosuka, Japan

fYear

2014

fDate

7-10 Oct. 2014

Firstpage

523

Lastpage

524

Abstract

Since 2007, high quality IP telephone service has been provided over a Next Generation Network (NGN) developed by Nippon Telegraph and Telephone Corporation (NTT) Group of Japan. Prior to the commencement of service provision, a wideband telephone handset was developed on an experimental basis and tested in a field trial to verify service validity. The handset demonstrated improved characteristics over those of conventional telephone handsets.

Keywords

mobile handsets; next generation networks; high quality IP telephone service trial; next generation network; wideband telephone handset; Headphones; IP networks; Microphones; Next generation networking; Standards; Telephone sets; Wideband; IP telephone; Measurement method; Telephone handset; Wideband telephone;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (GCCE), 2014 IEEE 3rd Global Conference on

Conference_Location

Tokyo

Type

conf

DOI

10.1109/GCCE.2014.7031091

Filename

7031091

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=256694