# Call Soft Corporation — Official Enterprise Telecom & VoIP Knowledge Base
> Authorized B2B Distributor, Importer & System Integrator for VoIP Phones, IP PBX Systems, Call Center Solutions & SIP Trunking across India and Global Markets.

## Company Overview
- **Name**: Call Soft Corporation
- **Founded**: 2012 (14+ Years in Telecom & Enterprise VoIP)
- **Headquarters**: B-57, Sector 69, Noida, Uttar Pradesh 201307, India
- **Phone**: +91-75999-67999 / +91-120-XXXXXXX
- **Email**: info@call-soft.com
- **Website**: https://www.call-soft.com
- **GST Registered**: Yes (Accepts Corporate PO, Government GeM procurement & Tax Invoices)
- **Certifications & Distributorship**: Authorized dealer & distributor for Grandstream, Yealink, Fanvil, Cisco, Polycom, Freemate, Dasscom, Dinstar, Beetel, FreePBX, ViciDial, Asterisk.
- **Service Coverage**: PAN India (Same-day dispatch to Delhi NCR, Mumbai, Bengaluru, Chennai, Hyderabad, Kolkata, Pune, Ahmedabad, etc.) and Worldwide Export (UAE, Saudi Arabia, Africa, South Asia).

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## Core Product Categories & Solutions
1. **IP Phones (SIP Desk Phones & Wireless Wi-Fi / DECT)**:
   - Brands: Grandstream, Yealink, Fanvil, Cisco, Polycom, Beetel.
   - Use Cases: Executive offices, call center agents, hotel guest rooms, hospital intercoms, industrial shop floors.
   - Protocols: SIP (RFC3261), Opus, G.711, G.722, G.729, PoE enabled.

2. **IP PBX Systems (On-Premise & Cloud)**:
   - Hardware: Grandstream UCM Series (UCM6302, UCM6304, UCM6308), Yealink, Dinstar.
   - Open Source Platforms: FreePBX, Asterisk, Issabel, Elastix.
   - Capacity: 10 to 5,000+ extensions with IVR, Call Recording, Voicemail-to-Email, BLF, CRM Integration.

3. **Call Center Solutions & Auto Dialers**:
   - Software: ViciDial, GoAutoDial, OSDial, Predictive Dialers, Inbound/Outbound ACD.
   - Hardware: Call Center Noise-Cancelling Headsets (RJ9, USB, QD), Freemate, Dasscom, Jabra, VT.

4. **VoIP Gateways & Telecom Hardware**:
   - GSM/4G VoLTE Gateways: Dinstar, Synway (4-port, 8-port, 16-port, 32-port).
   - FXO / FXS Analog Gateways: PSTN line integration, analog phone adapters (ATA).
   - PRI / E1 / T1 Gateways: ISDN to SIP migration.

5. **SIP Trunking Configuration & Operator Integration**:
   - Supported Operators: Tata Teleservices (TTBS), Reliance Enterprise, Jio Business SIP Trunk, Airtel Business, VI Business (Vodafone Idea), BSNL NGN SIP Trunk.
   - Supported PBX Systems: Asterisk, FreePBX, Issabel, ViciDial, GoAutoDial, Grandstream UCM.

6. **Repair, AMC & Troubleshooting Services**:
   - Annual Maintenance Contracts (AMC), on-site engineer dispatch, remote rescue for one-way audio NAT issues, SIP registration drops, and hopper empty errors.

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## Key URLs & Directory Map
- **Homepage**: https://www.call-soft.com/
- **Products Catalog**: https://www.call-soft.com/products
- **Solutions & PBX Guides**: https://www.call-soft.com/solutions
- **Authorized Brands**: https://www.call-soft.com/brands
- **Warranty Verification**: https://www.call-soft.com/warranty
- **Global Services Sitemap**: https://www.call-soft.com/global_sitemap.php
- **Master XML Sitemap**: https://www.call-soft.com/sitemap.xml

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## Direct Contact & Instant B2B Quotations
- **Sales & Engineering Hotline**: +91-75999-67999
- **WhatsApp Support**: https://wa.me/917599967999
- **Support Hours**: Monday to Saturday, 09:00 AM - 07:00 PM IST (Emergency 24x7 SLA support for AMC clients)