Voice over IP (English Wikipedia)

Montazerolghaem, Ahmadreza; Moghaddam, Mohammad Hossein Yaghmaee; Leon-Garcia, Alberto (March 2018). "OpenSIP: Toward Software-Defined SIP Networking". IEEE Transactions on Network and Service Management. 15 (1): 184–199. arXiv:1709.01320. doi:10.1109/TNSM.2017.2741258. ISSN 1932-4537. S2CID 3873601.
Valin, Jean-Marc; Maxwell, Gregory; Terriberry, Timothy B.; Vos, Koen (October 2013). High-Quality, Low-Delay Music Coding in the Opus Codec. 135th AES Convention. Audio Engineering Society. arXiv:1602.04845.

asterisk.org

"What is Asterisk". Asterisk.org. Archived from the original on January 23, 2009. Retrieved January 21, 2009.

axiaaudio.com

Michael Dosch and Steve Church. "VoIP in the Broadcast Studio". Axia Audio. Archived from the original on October 7, 2011. Retrieved June 21, 2011.

bbc.com

"Saudi Arabia to lift ban on internet calls". BBC News. September 20, 2017. Retrieved January 10, 2018.

bogus.com

nagasaki.bogus.com

Audio-Mitschnitt Archived February 10, 2013, at the Wayback Machine vom Treffen der IETF-Codec-Arbeitsgruppe auf der Konferenz IETF79 in Peking, China mit einer Darstellung der grundlegenden Funktionsprinzipien durch Koen Vos (MP3, ~70 MiB)

books.google.com

Jeff Riddel (2007). Packetcable Implementation. Cisco Press. p. 557. ISBN 978-1-58705-181-4.
Advanced Content Delivery, Streaming, and Cloud Services (Pg 34). Willey. September 19, 2014. ISBN 9781118909706. Retrieved December 6, 2014.
IDG Network World Inc; Eckerson, Wayne (September 21, 1992). "Network World - Startup targets desktop Videoconferencing arena". Network World. IDG Network World Inc: 39–. ISSN 0887-7661. Retrieved February 10, 2012.
Hersent, Olivier; Petit, Jean-Pierre; Gurle, David (2005). Beyond VoIP Protocols: Understanding Voice Technology and Networking Techniques for IP Telephony. John Wiley & Sons. p. 55. ISBN 9780470023631.
Nagireddi, Sivannarayana (2008). VoIP Voice and Fax Signal Processing. John Wiley & Sons. p. 69. ISBN 9780470377864.

business2community.com

Dua, Amit (July 29, 2021). "VoIP Basics: Everything Beginners Should Know!". business2community.com. Business 2 Community. Retrieved September 14, 2021.

callcentric.com

"Android SIP Client". Retrieved January 30, 2018.

cambridge.org

dictionary.cambridge.org

"VoIP". Cambridge Dictionaries Online.

celt-codec.org

Presentation of the CELT codec Archived August 7, 2011, at the Wayback Machine by Timothy B. Terriberry (65 minutes of video, see also presentation slides Archived August 10, 2011, at the Wayback Machine in PDF)

circleid.com

Thermos, Peter (April 5, 2006). "Examining Two Well-Known Attacks on VoIP". CircleID. Retrieved April 5, 2006.

cisco.com

"H.323 and SIP Integration". Retrieved January 24, 2020.
"Quality of Service for Voice over IP". Retrieved May 3, 2011.
"Quality of Service for Voice over IP". Retrieved May 3, 2011.

cnbc.com

"UAE loosens some VoIP restrictions as residents in lockdown call for end to WhatsApp and Skype ban". CNBC. March 26, 2020. Retrieved March 26, 2020.

continuitycentral.com

"VoIP - Vulnerability over Internet Protocol?". www.continuitycentral.com.

crtc.gc.ca

"Telecom Decision CRTC 2005-21". Canadian Radio-television and Telecommunications Commission. Government of Canada. April 4, 2005. Retrieved April 29, 2017.

cybertelecom.org

Pershing, Genny. "Cybertelecom :: VoIP :: FCC". www.cybertelecom.org. Retrieved September 21, 2017.

defense.gov

media.defense.gov

"Deploying Secure Unified Communications/Voice and Video over IP Systems" (PDF). media.defense.gov. Retrieved September 27, 2023.

disa.mil

iase.disa.mil

"Internet Protocol Telephony & Voice over Internet Protocol Security Technical Implementation Guide Version 2, Release 2" (PDF). DISA. April 21, 2006. Archived from the original (PDF) on August 25, 2009.

doi.org

Montazerolghaem, Ahmadreza; Moghaddam, Mohammad Hossein Yaghmaee; Leon-Garcia, Alberto (March 2018). "OpenSIP: Toward Software-Defined SIP Networking". IEEE Transactions on Network and Service Management. 15 (1): 184–199. arXiv:1709.01320. doi:10.1109/TNSM.2017.2741258. ISSN 1932-4537. S2CID 3873601.
Prabhakar, G.; Rastogi, R.; Thotton, M (2005). "OSS Architecture & Requirements for VoIP Networks". Bell Labs Technical Journal. 10 (1): 31–45. doi:10.1002/bltj.20077. S2CID 12336090.
Caceres, Ramon. RTP Control Protocol Extended Reports (RTCP XR). doi:10.17487/RFC3611. RFC 3611.
White, C.M.; Teague, K.A.; Daniel, E.J. (November 7–10, 2004). "Packet loss concealment in a secure voice over IP environment" (PDF). Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004. Vol. 1. pp. 415–419. CiteSeerX 10.1.1.219.633. doi:10.1109/ACSSC.2004.1399165. ISBN 978-0-7803-8622-8. S2CID 402760. Archived from the original (PDF) on May 17, 2006. Retrieved June 12, 2009.
Gray, Robert M. (2010). "A History of Realtime Digital Speech on Packet Networks: Part II of Linear Predictive Coding and the Internet Protocol" (PDF). Found. Trends Signal Process. 3 (4): 203–303. doi:10.1561/2000000036. ISSN 1932-8346.
Cerf, V.; Kahn, R. (May 1974). "A Protocol for Packet Network Intercommunication" (PDF). IEEE Transactions on Communications. 22 (5): 637–648. doi:10.1109/TCOM.1974.1092259.

e-forall.org

Proenza, Francisco J. "The Road to Broadband Development in Developing Countries is through Competition Driven by Wireless and VOIP" (PDF). Archived from the original (PDF) on June 2, 2012. Retrieved April 7, 2008.

faqs.org

"RFC 2235". R. Zakon. Retrieved January 21, 2009.

fcc.gov

"Voice Over Internet Protocol (VoIP)". Federal Communications Commission. November 18, 2010. Retrieved July 19, 2022.
"Keeping your telephone number when you change your service provider". FCC. Archived from the original on December 12, 2009. Retrieved January 20, 2009.
"FCC Consumer Advisory VoIP and 911 Service" (PDF). FCC. Archived from the original (PDF) on August 10, 2010. Retrieved May 2, 2011.
"Hearing Aid Compatibility for Wireline and Wireless Telephones". Federal Communications Commission. October 30, 2014. Retrieved July 9, 2019.
FCC.gov, What are some advantages of VoIP?
"VoIP and 911 Service". FCC. May 26, 2011. Retrieved August 16, 2014.
"Voice Over Internet Protocol (VoIP)". November 18, 2010. Retrieved September 21, 2017.

fitsmallbusiness.com

McCraw, Corey (October 12, 2022). "The History of VoIP Over the Last 55 Years (1966 to 2021)". fitsmallbusiness.com. Fits Small Business.

forbes.com

Korzeniowski, Peter (January 8, 2009). "Three Technologies You Need In 2009". Forbes. Retrieved March 2, 2009.
Callahan, Renee (December 9, 2008). "Businesses Move To Voice-Over-IP". Forbes. Retrieved March 3, 2009.
Greenberg, Andy (May 15, 2008). "The State Of Cybersecurity Wiretapping's Fuzzy Future". Forbes. Retrieved March 2, 2009.

fraunhofer.de

iis.fraunhofer.de

Lutzky, Manfred; Schuller, Gerald; Gayer, Marc; Krämer, Ulrich; Wabnik, Stefan (May 2004). A guideline to audio codec delay (PDF). 116th AES Convention. Fraunhofer IIS. Audio Engineering Society. Retrieved October 24, 2019.
Schnell, Markus; Schmidt, Markus; Jander, Manuel; Albert, Tobias; Geiger, Ralf; Ruoppila, Vesa; Ekstrand, Per; Bernhard, Grill (October 2008). MPEG-4 Enhanced Low Delay AAC - A New Standard for High Quality Communication (PDF). 125th AES Convention. Fraunhofer IIS. Audio Engineering Society. Retrieved October 20, 2019.

freesoftwaremagazine.com

"Secure VOIP calling, free software, and the right to privacy". Free Software Magazine.

gcn.com

Jackson, William (May 27, 2009). "SSA goes big on VOIP". Government Computer News. Archived from the original on July 28, 2011. Retrieved May 28, 2009.

gdc4s.com

"Secure Voice over IP (SVoIP) vs. Voice over Secure IP (VoSIP) Installations" (PDF). General Dynamics C4 Systems. Archived from the original (PDF) on September 24, 2015.

googletalk.blogspot.com

"XMPP Federation". Google Talkabout. 2006. Retrieved May 11, 2012.

govtech.com

"Social Security to Build "World's Largest VOIP"". Government Technology. Archived from the original on June 2, 2009. Retrieved May 29, 2009.

gpo.gov

access.gpo.gov

GPO.gov Archived June 8, 2010, at the Wayback Machine, 47 C.F.R. pt. 9 (2007)

gulfnews.com

Maceda, Cleofe (January 8, 2018). "No Skype? Pay Dh50 monthly for video calls". Gulf News. Retrieved January 9, 2018.

hp.com

"network infrastructure: getting started with VoIP" (PDF). Archived from the original (PDF) on September 17, 2011.

ictregulationtoolkit.org

"4.4 VOIP – Regulatory Issues – Universal Service". ICT Regulation Tool Kit. Archived from the original on June 4, 2009. Retrieved September 21, 2017.

ieee.org

ieeexplore.ieee.org

Montazerolghaem, Ahmadreza; Moghaddam, Mohammad Hossein Yaghmaee; Leon-Garcia, Alberto (March 2018). "OpenSIP: Toward Software-Defined SIP Networking". IEEE Transactions on Network and Service Management. 15 (1): 184–199. arXiv:1709.01320. doi:10.1109/TNSM.2017.2741258. ISSN 1932-4537. S2CID 3873601.

ietf.org

datatracker.ietf.org

Caceres, Ramon. RTP Control Protocol Extended Reports (RTCP XR). doi:10.17487/RFC3611. RFC 3611.

ietf.org

"RFC 2543, SIP: Session Initiation Protocol". Handley, Schulzrinne, Schooler, Rosenberg. Retrieved January 21, 2009.

ijcsns.org

paper.ijcsns.org

Dunte, Markus; Ruland, Christoph (June 2007). "Secure Voice-over-IP" (PDF). International Journal of Computer Science and Network Security. 7 (6): 63–68. Archived (PDF) from the original on April 19, 2023.

ilocus.com

"The 10 that Established VOIP (Part 1: VocalTec)". iLocus. Retrieved January 21, 2009.
"The 10 that Established VOIP (Part 2: Level 3)". iLocus. July 13, 2007. Retrieved November 7, 2007.

internethalloffame.org

"Danny Cohen". INTERNET HALL of FAME. Retrieved December 6, 2014.

ipall.org

"Global VOIP Policy Status Matrix". Global IP Alliance. 2005. Retrieved November 23, 2006.

it-innovations.ae

"VoIP performance measurement using QoS parameters" (PDF). A.H.Muhamad Amin. August 14, 2016.

itu.int

"H.323 Visual telephone systems and equipment for local area networks which provide a non-guaranteed quality of service". ITU-T. Retrieved January 21, 2009.

itweb.co.za

"TelePassport takes the sting out of MNP". ITWeb. November 13, 2006. Archived from the original on July 19, 2022. Retrieved July 19, 2022.

ixiacom.com

"Testing Voice over IP (VolP) Networks" (PDF). IXIA. August 14, 2016.

jhu.edu

clsp.jhu.edu

White, C.M.; Teague, K.A.; Daniel, E.J. (November 7–10, 2004). "Packet loss concealment in a secure voice over IP environment" (PDF). Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004. Vol. 1. pp. 415–419. CiteSeerX 10.1.1.219.633. doi:10.1109/ACSSC.2004.1399165. ISBN 978-0-7803-8622-8. S2CID 402760. Archived from the original (PDF) on May 17, 2006. Retrieved June 12, 2009.

khaleejtimes.com

"Don't worry, Skype is working in UAE". Khaleejtimes. June 26, 2017. Retrieved January 11, 2018.

lifewire.com

"Learn to Make Free or Inexpensive Calls Using SIP on Android". Retrieved January 30, 2018.

networkworld.com

"Cellcrypt secure VOIP heading to BlackBerry". Networkworld.com. Archived from the original on April 24, 2009. Retrieved June 12, 2009.

news.google.com

Remo, Michelle V. (August 27, 2007). "Prospects bright for voice calls over internet". Philippine Daily Inquirer. Retrieved January 1, 2015.

nsa.gov

"NSA Releases Guidance on Securing Unified Communications and Voice and Video over IP Systems". National Security Agency/Central Security Service. Retrieved September 26, 2022.

nsf.gov

"The Launch of NSFNET". The National Science Foundation. Archived from the original on May 7, 2006. Retrieved January 21, 2009.

nytimes.com

Pogue, David (August 2, 2007). "State of the Art: Get Your Free Net Phone Calls Here". The New York Times. Retrieved January 20, 2009.

packetizer.com

"RFC 3824– Using E.164 numbers with the Session Initiation Protocol (SIP)". The Internet Society. June 1, 2004. Retrieved January 21, 2009.
"RFC 3969– The Internet Assigned Number Authority (IANA) Uniform Resource Identifier (URI) Parameter Registry for the Session Initiation Protocol (SIP)". The Internet Society. December 1, 2004. Retrieved January 21, 2009.

patents.google.com

Audio Transceiver

psu.edu

citeseerx.ist.psu.edu

White, C.M.; Teague, K.A.; Daniel, E.J. (November 7–10, 2004). "Packet loss concealment in a secure voice over IP environment" (PDF). Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004. Vol. 1. pp. 415–419. CiteSeerX 10.1.1.219.633. doi:10.1109/ACSSC.2004.1399165. ISBN 978-0-7803-8622-8. S2CID 402760. Archived from the original (PDF) on May 17, 2006. Retrieved June 12, 2009.

radvision.com

The free Library RADVision and Intel Target Compatibility Between RADVision's H.323/320 Videoconferencing Gateway And Intel's Business Video Conferencing And TeamStation Products. Archived October 30, 2013, at the Wayback Machine June 2, 1997 VoiP Developer Solutions Archived June 16, 2011, at the Wayback Machine

reuters.com

"Saudi Arabia to lift ban on internet calls". Reuters. September 20, 2017. Retrieved January 10, 2018.

rice.edu

cs.rice.edu

Cerf, V.; Kahn, R. (May 1974). "A Protocol for Packet Network Intercommunication" (PDF). IEEE Transactions on Communications. 22 (5): 637–648. doi:10.1109/TCOM.1974.1092259.

sans.org

Stringfellow, Brian (August 15, 2001). "Secure Voice Over IP". SANS Institute. Archived from the original on June 1, 2023.

scribd.com

Harish Kumar Gangwar Technical Note on Illegal International Long Distance telephone Exchange in India

semanticscholar.org

api.semanticscholar.org

Montazerolghaem, Ahmadreza; Moghaddam, Mohammad Hossein Yaghmaee; Leon-Garcia, Alberto (March 2018). "OpenSIP: Toward Software-Defined SIP Networking". IEEE Transactions on Network and Service Management. 15 (1): 184–199. arXiv:1709.01320. doi:10.1109/TNSM.2017.2741258. ISSN 1932-4537. S2CID 3873601.
Prabhakar, G.; Rastogi, R.; Thotton, M (2005). "OSS Architecture & Requirements for VoIP Networks". Bell Labs Technical Journal. 10 (1): 31–45. doi:10.1002/bltj.20077. S2CID 12336090.
White, C.M.; Teague, K.A.; Daniel, E.J. (November 7–10, 2004). "Packet loss concealment in a secure voice over IP environment" (PDF). Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004. Vol. 1. pp. 415–419. CiteSeerX 10.1.1.219.633. doi:10.1109/ACSSC.2004.1399165. ISBN 978-0-7803-8622-8. S2CID 402760. Archived from the original (PDF) on May 17, 2006. Retrieved June 12, 2009.
Gupta, Shipra (May 2016). "Application of MFCC in Text Independent Speaker Recognition" (PDF). International Journal of Advanced Research in Computer Science and Software Engineering. 6 (5): 805–810 (806). ISSN 2277-128X. S2CID 212485331. Archived from the original (PDF) on October 18, 2019. Retrieved October 18, 2019.

pdfs.semanticscholar.org

Gupta, Shipra (May 2016). "Application of MFCC in Text Independent Speaker Recognition" (PDF). International Journal of Advanced Research in Computer Science and Software Engineering. 6 (5): 805–810 (806). ISSN 2277-128X. S2CID 212485331. Archived from the original (PDF) on October 18, 2019. Retrieved October 18, 2019.

skype.com

"Skype For Business". skype.com. Retrieved March 16, 2009.
"Create a Skype Name". Skype. Retrieved January 21, 2009.
"Your personal online number". Skype. Retrieved January 21, 2009.

soft-switch.org

"Faxing over IP networks". Soft-Switch.org. Archived from the original on December 18, 2023.

stanford.edu

ee.stanford.edu

Gray, Robert M. (2010). "A History of Realtime Digital Speech on Packet Networks: Part II of Linear Predictive Coding and the Internet Protocol" (PDF). Found. Trends Signal Process. 3 (4): 203–303. doi:10.1561/2000000036. ISSN 1932-8346.

startrinity.com

"Performance and Stress Testing of SIP Servers, Clients and IP Networks". StarTrinity. August 13, 2016.

stripes.com

Stars and Stripes: USFK deal keeps VoIP access for troops, archived from the original on January 13, 2010

teledynamics.com

info.teledynamics.com

Noworatzky, Daniel (February 6, 2019). "Keep your VoIP E911 service in compliance with this checklist". TeleDynamics. Retrieved July 19, 2022.

thefreelibrary.com

The free Library RADVision and Intel Target Compatibility Between RADVision's H.323/320 Videoconferencing Gateway And Intel's Business Video Conferencing And TeamStation Products. Archived October 30, 2013, at the Wayback Machine June 2, 1997 VoiP Developer Solutions Archived June 16, 2011, at the Wayback Machine

thenational.ae

Zacharias, Anna \ (January 8, 2018). "Etisalat launches new calling app plan days after Skype disruptions". The National. Retrieved January 9, 2018.

theregister.co.uk

Metz, Cade. "Oman cuffs 212 for selling VoIP calls". The Register. Retrieved September 20, 2016.

tmcnet.com

ipcommunications.tmcnet.com

"Application-level Network Interoperability and the Evolution of IMS". TMCnet.com. May 24, 2006. Retrieved January 21, 2009.

blog.tmcnet.com

Keating, Tom. "Internet Phone Release 4" (PDF). Computer Telephony Interaction Magazine. Retrieved November 7, 2007.

trai.gov.in

Mahanagar Doorsanchar Bhawan and Jawahar Lal Nehru Marg (May 2008). "Telecom Regulatory Authority of India (TRAI) Consultation paper on Issues related to Internet Telephony. Consultation Paper No. 11/2008" (PDF). New Delhi India: Telecom Regulatory Authority of India (TRAI). p. 16 (Section 2.2.1.2 PC–to–Phone Internet telephony). Archived from the original (PDF) on October 6, 2014. Retrieved September 19, 2012. An end-user is allowed to make PC–to-Phone Internet Telephony calls only on PSTN/PLMN abroad.

unc.edu

sunsite.unc.edu

"MTALK-Readme" (TXT). Sunsite.edu. Retrieved April 29, 2012.

vmware.com

"Voice over IP (VoIP) Performance Evaluation on VMware vSphere® 5" (PDF). VMware. August 14, 2016.

voipsa.org

VOIPSA.org, Blog: "Hello Mom, I'm a Fake!" (Telespoof and Fakecaller).

web.archive.org

Arora, Rakesh (November 23, 1999). "Voice Over IP : Protocols and Standards". cse.wustl.edu. Archived from the original on January 19, 2024. Retrieved March 19, 2024. Voice over IP (VOIP) uses the Internet Protocol (IP) to transmit voice as packets over an IP network. ...in the Internet, anyone can capture the packets meant for someone else. Some security can be provided by using encryption and tunneling. The common tunneling protocol used is Layer 2 Tunneling Protocol and the common encryption mechanism used is Secure Sockets Layer (SSL).
"WIRELESS: Carriers look to IP for backhaul". www.eetimes.com. EE Times. Archived from the original on August 9, 2011. Retrieved April 8, 2015.{{cite web}}: CS1 maint: unfit URL (link)
"Mobile's IP challenge". www.totaltele.com. Total Telecom Online. Archived from the original on February 17, 2006. Retrieved April 8, 2015.{{cite web}}: CS1 maint: unfit URL (link)
Michael Dosch and Steve Church. "VoIP in the Broadcast Studio". Axia Audio. Archived from the original on October 7, 2011. Retrieved June 21, 2011.
Jackson, William (May 27, 2009). "SSA goes big on VOIP". Government Computer News. Archived from the original on July 28, 2011. Retrieved May 28, 2009.
"Social Security to Build "World's Largest VOIP"". Government Technology. Archived from the original on June 2, 2009. Retrieved May 29, 2009.
"Importance of Softswitch VoIP Technology". ixc.ua. May 20, 2011. Archived from the original on November 11, 2012. Retrieved October 4, 2012.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
"Keeping your telephone number when you change your service provider". FCC. Archived from the original on December 12, 2009. Retrieved January 20, 2009.
"TelePassport takes the sting out of MNP". ITWeb. November 13, 2006. Archived from the original on July 19, 2022. Retrieved July 19, 2022.
"FCC Consumer Advisory VoIP and 911 Service" (PDF). FCC. Archived from the original (PDF) on August 10, 2010. Retrieved May 2, 2011.
"Faxing over IP networks". Soft-Switch.org. Archived from the original on December 18, 2023.
"4.4 VOIP – Regulatory Issues – Universal Service". ICT Regulation Tool Kit. Archived from the original on June 4, 2009. Retrieved September 21, 2017.
"Internet Protocol Telephony & Voice over Internet Protocol Security Technical Implementation Guide Version 2, Release 2" (PDF). DISA. April 21, 2006. Archived from the original (PDF) on August 25, 2009.
"Secure Voice over IP (SVoIP) vs. Voice over Secure IP (VoSIP) Installations" (PDF). General Dynamics C4 Systems. Archived from the original (PDF) on September 24, 2015.
Dunte, Markus; Ruland, Christoph (June 2007). "Secure Voice-over-IP" (PDF). International Journal of Computer Science and Network Security. 7 (6): 63–68. Archived (PDF) from the original on April 19, 2023.
Stringfellow, Brian (August 15, 2001). "Secure Voice Over IP". SANS Institute. Archived from the original on June 1, 2023.
White, C.M.; Teague, K.A.; Daniel, E.J. (November 7–10, 2004). "Packet loss concealment in a secure voice over IP environment" (PDF). Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004. Vol. 1. pp. 415–419. CiteSeerX 10.1.1.219.633. doi:10.1109/ACSSC.2004.1399165. ISBN 978-0-7803-8622-8. S2CID 402760. Archived from the original (PDF) on May 17, 2006. Retrieved June 12, 2009.
"Cellcrypt secure VOIP heading to BlackBerry". Networkworld.com. Archived from the original on April 24, 2009. Retrieved June 12, 2009.
"network infrastructure: getting started with VoIP" (PDF). Archived from the original (PDF) on September 17, 2011.
Proenza, Francisco J. "The Road to Broadband Development in Developing Countries is through Competition Driven by Wireless and VOIP" (PDF). Archived from the original (PDF) on June 2, 2012. Retrieved April 7, 2008.
Mahanagar Doorsanchar Bhawan and Jawahar Lal Nehru Marg (May 2008). "Telecom Regulatory Authority of India (TRAI) Consultation paper on Issues related to Internet Telephony. Consultation Paper No. 11/2008" (PDF). New Delhi India: Telecom Regulatory Authority of India (TRAI). p. 16 (Section 2.2.1.2 PC–to–Phone Internet telephony). Archived from the original (PDF) on October 6, 2014. Retrieved September 19, 2012. An end-user is allowed to make PC–to-Phone Internet Telephony calls only on PSTN/PLMN abroad.
Stars and Stripes: USFK deal keeps VoIP access for troops, archived from the original on January 13, 2010
GPO.gov Archived June 8, 2010, at the Wayback Machine, 47 C.F.R. pt. 9 (2007)
Gupta, Shipra (May 2016). "Application of MFCC in Text Independent Speaker Recognition" (PDF). International Journal of Advanced Research in Computer Science and Software Engineering. 6 (5): 805–810 (806). ISSN 2277-128X. S2CID 212485331. Archived from the original (PDF) on October 18, 2019. Retrieved October 18, 2019.
"The Launch of NSFNET". The National Science Foundation. Archived from the original on May 7, 2006. Retrieved January 21, 2009.
The free Library RADVision and Intel Target Compatibility Between RADVision's H.323/320 Videoconferencing Gateway And Intel's Business Video Conferencing And TeamStation Products. Archived October 30, 2013, at the Wayback Machine June 2, 1997 VoiP Developer Solutions Archived June 16, 2011, at the Wayback Machine
"What is Asterisk". Asterisk.org. Archived from the original on January 23, 2009. Retrieved January 21, 2009.
Audio-Mitschnitt Archived February 10, 2013, at the Wayback Machine vom Treffen der IETF-Codec-Arbeitsgruppe auf der Konferenz IETF79 in Peking, China mit einer Darstellung der grundlegenden Funktionsprinzipien durch Koen Vos (MP3, ~70 MiB)
Presentation of the CELT codec Archived August 7, 2011, at the Wayback Machine by Timothy B. Terriberry (65 minutes of video, see also presentation slides Archived August 10, 2011, at the Wayback Machine in PDF)

wirevolution.com

"Skype's new super wideband codec". Wirevolution.com. January 13, 2009. Retrieved March 31, 2009.

worldcat.org

Montazerolghaem, Ahmadreza; Moghaddam, Mohammad Hossein Yaghmaee; Leon-Garcia, Alberto (March 2018). "OpenSIP: Toward Software-Defined SIP Networking". IEEE Transactions on Network and Service Management. 15 (1): 184–199. arXiv:1709.01320. doi:10.1109/TNSM.2017.2741258. ISSN 1932-4537. S2CID 3873601.
Gray, Robert M. (2010). "A History of Realtime Digital Speech on Packet Networks: Part II of Linear Predictive Coding and the Internet Protocol" (PDF). Found. Trends Signal Process. 3 (4): 203–303. doi:10.1561/2000000036. ISSN 1932-8346.
Gupta, Shipra (May 2016). "Application of MFCC in Text Independent Speaker Recognition" (PDF). International Journal of Advanced Research in Computer Science and Software Engineering. 6 (5): 805–810 (806). ISSN 2277-128X. S2CID 212485331. Archived from the original (PDF) on October 18, 2019. Retrieved October 18, 2019.
IDG Network World Inc; Eckerson, Wayne (September 21, 1992). "Network World - Startup targets desktop Videoconferencing arena". Network World. IDG Network World Inc: 39–. ISSN 0887-7661. Retrieved February 10, 2012.

wseas.us

"Methodology for SIP Infrastructure Performance Testing" (PDF). Miroslav Voznak, Jan Rozhon. August 14, 2016.

wustl.edu

cse.wustl.edu

Arora, Rakesh (November 23, 1999). "Voice Over IP : Protocols and Standards". cse.wustl.edu. Archived from the original on January 19, 2024. Retrieved March 19, 2024. Voice over IP (VOIP) uses the Internet Protocol (IP) to transmit voice as packets over an IP network. ...in the Internet, anyone can capture the packets meant for someone else. Some security can be provided by using encryption and tunneling. The common tunneling protocol used is Layer 2 Tunneling Protocol and the common encryption mechanism used is Secure Sockets Layer (SSL).

xiph.org

people.xiph.org

Presentation of the CELT codec Archived August 7, 2011, at the Wayback Machine by Timothy B. Terriberry (65 minutes of video, see also presentation slides Archived August 10, 2011, at the Wayback Machine in PDF)