Consultancy, Integration, customization, deployment and support services of following open source VoIP applications
Asterisk http://www.asterisk.org
Elastix http://www.elastix.org
FreeSwitch http://www.freeswitch.org
Call Weaver http://www.callweaver.org
openSIPS http://www.opensips.org
GnuGK http://www.gnugk.org
FreePBX http://www.freepbx.org
A2Billing http://www.a2billing.org/
AstPP http://www.astpp.org
Freeradius http://www.freeradius.org/
Drupal http://www.drupal.org
ICTInvoice http://ictinvoice.sourceforge.net
ICTFAX http://www.ictfax.org
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