Voice Over IP

Telecommunications

United States. General Accounting Office

1988

IP telephony

Olivier Hersent

2000

Ad Hoc Mobile Wireless Networks

Subir Kumar Sarkar

2007

The iPhone pocket guide

Christopher Breen

2008

Voice and data communications handbook

Regis J. Bates

1995

How Internet protocol-enabled services are changing the face of communications

United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Telecommunications and the Internet

2005

Handbook on Session Initiation Protocol

Radhika Ranjan Roy

2016

iPhone

David Pogue

2007