Upgrade your business communication with the 4+16 GSM PABX Telephone Exchange. Featuring 4 PSTN and 16 GSM lines, this system ensures reliable, cost-effective, and uninterrupted connectivity. Perfect for offices, call centers, and enterprises, it supports caller ID, call forwarding, conferencing, and more. Enhance efficiency with a smart, salable, and user-friendly PBX solution. Key Features : 1. Hybrid Connectivity – Supports 4 PSTN (landline) and 16 GSM SIM card-based lines for flexible communication. 2. Cost-Effective Calling – Reduces call costs by routing calls through GSM networks. 3. Caller ID Support – Displays caller information for easy identification. 4. Call Forwarding & Transfer – Seamless call redirection to desired extensions or external numbers. 5. Conference Calling – Enables multi-party communication for business meetings. 6. Auto Attendant (IVR) – Automated answering and call routing for professional customer interactions. 7. Call Recording – Optional feature to log conversations for monitoring and training purposes. 8. Extension-to-Extension Calling – Internal calling without additional charges. 9. Call Waiting & Hold – Manage multiple calls efficiently without dropping connections. 10. Voicemail Support – Ensures no missed messages with voicemail functionality. 11. Remote Access & Management – Configure and monitor the system remotely for convenience. 12. Salable & Reliable – Expandable system suitable for small to medium-sized businesses.