ACE*COMM Corporation
Develops operations support system products for networks deployed by telecommunications service providers such as telephone companies, other public carriers and large enterprises operating data and voice networks using intranet and the internet. (Nasdaq: ACEC).
http://www.acecomm.com

Advanced Telecom Services
IVR and SMS telecom service providing customers with a large-scale dual platform for both voice and mobile data services in the USA, Canada, UK, Ireland and the Czech Republic.
http://www.advancedtele.com

AFC Inc.
Offering digital loop carrier system developed to serve small line-sized markets.
http://www.afc.com

Airnex Communications
A global communications and information company with focus on the ethnic communities around the globe which offers long distance, cellular, paging, and internet services.
http://www.airnex.com

AltiGen Communications, Inc.
Designs, manufactures and markets server-based telecommunications systems which allow businesses to use the internet and the public switched telephone network interchangeably to carry voice and data communications. (Nasdaq: ATGN)
http://www.altigen.com

Calling Card by PennyTalk
Rechargeable prepaid phone card with low rates to all over the world.
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Calling cards Online
We offer you the most favourable prepaid phone cards for United States available today.
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GN Netcom Wireless Headset
Buy plantronics headsets, sennheiser headsets and gn netcom headsets from liGo, the UK online store for headsets.
http://www.cordless-phones.uk.com/headsets/digital-wireless-headsets/

Myvideotalk
Myvideotalk, mvt offers you streaming video solutions used in video e-mails, video webmeetings, video-phoning. My Video Talk brings world together.
http://www.my-video-talk.org/

Prepaid phone cards.
Quality international phone card (prepaid phone cards, instant calling card) with cheap calling rate. Save 95% internetional calls. Call world just 1c/min.
http://www.all-phonecards.com