Buyers' guide: companies listed in this voice networks buyers' guide can assist you in selecting the products and services that work best for your organization

Communications News, March, 2007

American Systems Corp.

703-968-6300 www.2asc.com

Avotus Corp.

781-238-4455 www.avotus.com

Calence

480-889-9500 www.calence.com

CommPartners

702-367-8647 www.commpartners.com

Copia International

800-689-8898 www.voicefacts.com

Criticom

301-306-0600 www.criticom.com

Digium/Asterisk

256-428-6000 www.digium.com

Dimension Data

631-543-6100 www.dimensiondata.com/na

DynTek

949-271-6705 www.dyntek.com

EDS

972-797-8809 www.eds.com

Inter-Tel

480-449-8900 www.inter-tel.com

LiteScape Technologies

650-292-0322 www.litescape.com

M5 Networks

877-884-3865 www.m5net.com

NCast Corp.

408-541-9230 www.ncast.com

NEC Unified Solutions

214-262-6000 www.necunifiedsolutions.com

New Global Telecom

303-278-0700 www.ngt.com

Ranch Networks

732-817-1900 www.ranchnetworks.com

Siemens Communications

800-310-6308 www.siemensenterprise.com

Smoothstone IP Communications

502-315-5177 www.smoothstone.com

tekVizion

877-984-9466 www.tekvizion.com

Telsource Corp.

888-835-7687 www.telsource.com

Time Warner Telecom

303-566-1000 www.twtelecom.com

Toshiba Telecommunication Sys. Div.

949-583-3700 www.telecom.toshiba.com

Whaleback Systems

603-812-0400 www.whalebacksystems.com

TELEPHONY/VOIP TEST

3M Communication

800-426-8688 www.3M.com/telecom

Acterna/JDSU

408-546-5000 www.jdsu.com

Agilent Technologies

800-829-4444 www.agilent.com

American Systems Corp.

703-968-6300 www.2asc.com

Avaya

866-462-8292 www.avaya.com

* Berkeley Varitronics Systems

732-548-3737 www.bvsystems.com

BVS designs and manufactures wireless test equipment for CDMA, Wi-Fi, WiMax, REID and VolP applications using hand-held receivers and spectrum analyzers.

Calence

480-889-9500 www.calence.com

* Cisco Systems

800-553-6387 www.cisco.com

CommPartners

702-367-8647 www.commpartners.com

Digium/Asterisk

256-428-6000 www.digium.com

Dimension Data

631-543-6100 www.dimensiondata.com/na

DynTek

949-271-6705 www.dyntek.com

Empirix

866-367-4749 www.empirix.com

EXFO

418-683-0211 www.exfo.com

GL Communications

301-670-4784 www.gl.com

* Gordon Kapes

847-676-1750 www.gkinc.com

Graybar

800-472-9227 www.graybar.com

Hutton Communications

877-648-8866 www.huttononline.com

NEC Unified Solutions

214-262-6000 www.necunifiedsolutions.com

Netreo

866-638-7361 www.netreo.net

Network General Corp.

408-571-5000 www.networkgeneral.com

NextiraOne

800-324-2222 www.nextiraone.com

PacketStorm Communications

732-544-2434 www.packetstorm.com

Power & Telephone Supply

901-324-6116 www.ptsupply.com

Psiber Data Systems

619-287-9970 www.psiber.com

Psytechnics

603-427-6500 www.psytechnics.com

RADCOM

201-518-0033 www.radcom.com

SHUNRA Software

212-279-8895 www.shunra.com

Siemens Communications

800-310-6308 www.siemensenterprise.com

Smoothstone IP Communications

502-315-5177 www.smoothstone.com

Soyo Group

909-292-2500 www.soyogroup.com

Sunrise Telecom

408-363-8000 www.sunrisetelecom.com

Tektronix

503-627-5644 www.tektronix.com

tekVizion

877-984-9466 www.tekvizion.com

Telsource Corp.

888-835-7687 www.telsource.com

Touchstone Technologies

215-672-6550 www.touchstone-inc.com

Viola Networks

866-571-2500 www.violanetworks.com

WildPackets

925-937-3200 www.wildpackets.com

UNIFIED COMMUNICATIONS

3Com Corp.