NSP company is an authorized partner of 3CX.
Evolve your communications with 3CX Phone System for Windows - an IP Phone System that completely replaces your proprietary PBX, supports standard SIP soft/hard phones, VOIP services and traditional PSTN phone lines. 3CX is a software-based IP PBX which runs on a Windows-based PC or Server and allows you to enjoy premise-based IP PBX Services without having to buy an expensive, proprietary PBX Appliance. 3CX Phone System v12 and later also supports a well equipped 3CXPhone soft client which will run on your Android, iPhone, or Windows smartphone and allows you all the features of your VoIP deskphone including presence and chat.

3CX v12 includes plugins to incorporate your existing CRM system into the 3CX platform for TRUE unified communication! CRM plugins include Outlook, Dynamics CRM, Dynamics CRM4, Salesforce, Sugar CRM, Sage ACT, and Google Contacts.

Need more than your typical VoIP phone system? 3CX Professional Edition offers advanced call center features that are geared to boost your customer service. Integrate 3CX Phone System Pro with your Microsoft Exchange 2013 phone book to instantly see who’s calling you and span 3CX’s Unified Communications features across offices by viewing the presence of your colleagues in other offices! 3CX Phone System Professional Edition adds advanced features such as logging staff in and out of queues, additional queue strategies such as round robin or least talk time, reporting of staff log in and available times, SLA reports, "Listen In" and "barge" feature, and many more!

3CX Phone System:

Is far less expensive than a traditional PBX and can reduce call costs substantially by using a VOIP service provider.
Its web-based administration makes phone system management easy .
3CX Phone System eliminates the phone wiring network and allows users to hot desk simply by taking their phone.