Virtual PBX Knowledge 11/03/2026

Free Trial Opportunity for the First 1,000 Businesses to Experience Our Smart PBX System

Program: “FREE TRIAL OF SMART PBX SYSTEM FOR THE FIRST 1,000 BUSINESSES”

  • PBX number registration support (1900 – 1800 – 024 – 028) for businesses in just half a day
  • Built-in Mini CRM (Customer Relationship Management)

Many businesses in Vietnam and around the world have switched to virtual PBX systems combined with modern VoIP technology to optimize their customer care operations.

Going far beyond basic calling features, the system offers a wealth of benefits that no business should miss out on.

Omicall — an intelligent virtual PBX service — is a cloud-based call management center combined with modern VoIP technology. All that’s needed is a SIP SIM and a fixed number connected to the internal LAN, with no additional systems required.

  • Save 50% on monthly call costs
  • Free internal calls
  • Built-in compact PBX CRM for easy management of customer and staff information
  • Easy connection with PBX numbers 1900, 1800, and mobile SIP numbers such as 09xxx
  • No installation, maintenance, or equipment upgrade fees
  • Unlimited coverage
  • Make and receive calls anytime, anywhere
  • Easily scale and expand your network
  • Quick setup in just 1 hour
  • Supported on PC and smartphone for both iOS and Android
  • Increased sales closing capability
  • Integrated SMS and e-Voice for customer care

Notably, Omicall’s SIP SIM PBX system — combined with number rotation and auto-calling features — will help you connect with customers and partners in a smarter, more professional way.

VIHAT TECHNOLOGY Co., Ltd

Headquarters: ViHAT Building – 06 Street No. 16 (Him Lam Residential Area) – Hiep Binh Chanh Ward – Thu Duc District – Ho Chi Minh City

Hanoi Branch: Floor 15, LADECO Building, 266 Doi Can, Ba Dinh, Hanoi

Cambodia Branch: Thida Rath #154 St. 33MC, Sangkat Steung Meanchey, Khan Mean Chey, Phnom Penh

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