IP PBX in Pakistan

IP PBX systems make voice communication cost-effective and efficient. Insiyabi is a leading supplier of IP PBX in Pakistan, with a rich heritage of Siemens and UNIFY installed base. Insiyabi has successfully executed a number of large scale Enterprise IP PBX  projects including some of the most prestigious projects in the country.

PBX’s have evolved significantly during the past several decades, and will continue to do so. Today, many organizations are planning to, or making the switch to UC (unified communication) IP PBX platforms from legacy and unsupported systems. While these workhorses have served users well over the years, high maintenance costs, the inability to add many more phones and the lack of modern-day communication features is driving many organizations to switch to UC. Unified communication platforms are used to collaborate and communicate using multimedia and cross-media message-management functions by any individual user for both business and social purposes.

Small and Medium Enterprise

OpenScape Business IP PBX

UNIFY OpenScape Business IP PBX  is the all-in-one UC solution for small and medium sized organizations. Ideal for upto 500 users, OSB is scalable upto 1500 users with the server based deployment in a private or public cloud OSB combines multiple communication technologies – Voice, Video, Web, Conferences, Collaboration, Presence,  Web Collaboration, Instant Messaging, Voicemail, e-Mail, Fax, Contact Center, etc. –  in one  common portal for fast, efficient and cost effective communication. Available as an application on smart phones, SIP based devices and feature rich executive phones from UNIFY. Mobility features of OSB make it possible to work remotely from any device connected on Internet.

Large Enterprise

OpenScape 4000

Openscape 4000 (OS4K) is the IP PBX and Unified Communication Platform, ideal for large enterprise customers. Scalable upto 12,000 users in a single server, the Openscape 4000 can serve a total of 100,000 users when deployed in a network.

As part of the OpenScape Enterprise portfolio, OS4K bridges the gap from legacy digital communications to IP-based unified communications. Both reside side-by-side in the same enterprise, on the same platform. You leverage and enhance your existing communications by introducing powerful state-of-the-art UC capabilities. But where needed, as needed.

Designed for enterprises from 300 to 12,000 users, OS4K supports the full range of OpenScape UC for high-demand users, while allowing you to keep moderate-demand desks in digital format.

Flexible licensing means your users can move from one technology to the other as your needs demand. For data center deployments, it runs on industry-standard servers or as a traditional PBX platform.

  • Hybrid TDM/IP-PBX for Enterprise Voice with an extensive Enterprise feature set for traditional to next generation communication
  • Single system scales up to 12,000 users
  • Industry leader in Wireless DECT deployments – Cordless Enterprise
  • Active-Standby dual node architecture, no calls lost on switchover
  • Support for native SIP Subscribers
  • ENERGY STAR certified for OpenScape 4000 EcoServer as communication server to support high analog and TDM requirements and for OpenScape 4000 Branch as hybrid side
  • Integrated into OpenScape Management – zero touch maintenance
  • Fits into virtualized architecture (VMware), delivered as a vApp


The SL2100 galvanizes your team – creating a positive customer experience that generates repeat business.

With VoIP capabilities built right in, the SL2100 puts Unified Communications (UC) within reach of small businesses, yet still provides superior support for traditional telephony; ensuring total flexibility for every deployment.

Your business can’t afford downtime, nor can your communications. The SL2100 provides a reliable ‘always on’ solution. Designed to minimise maintenance and built with minimal hardware & licences; you have little to worry about.

Improving Teamwork

The SL2100 is built to make your business better, it will improve the way your entire team works.

Built-In Applications


Utilizing WebRTC (Real-Time Communications) – InUC provides highly cost-effective video and collaboration working seamlessly within your IT environment.


InGuard is an effective, low cost solution to help protect a business against the rise of toll fraud attacks.

More Built-in Features

• Web-Based Unified Communication Client
• VoIP Enabled
• Unified Messaging
• Music on Hold
• Mobility / BYOD / Remote Extension
• Auto Attendant
• Audio Conferencing
• Video Conferencing & Collaboration

Call us

Karachi: +92-21-36200052-55
Lahore: +92-42-36369410
Islamabad: +92-51-4862638

Email us

Sales: sales@insiyabi.com.pk

Support: support@insiyabi.com.pk