The number one choice for business Voice.
- Make up to 30 calls per circuit: each ISDN30 bearer can handle up to 30 simultaneous calls, on the same number. Add an unlimited number of channels by adding more circuits.
- Built-in Disaster Recovery: Immervox ISDN30 includes ELSA – which can quickly re-route channels in the event of fire, flood or human error.
- Support high call volumes: seamlessly handle high call volumes with Hunt Groups – that define who answers next if the first person is busy – and unlimited Direct Dial In numbers (DDIs).
ISDN30 is the number one choice for business Voice. Endlessly scalable, reliable and with the best combination of call quality and features, ISDN continues to fuel business communication and at all levels.
- BT infrastructure: Immervox ISDN30 lines are installed and maintained by BT Openreach
- 24/7 support: BT engineers on call during business hours (Mon – Fri, 9am – 5.30pm) with UK out of hours fault logging for immediate attention in the morning.
- 64kbps data per channel: handle data on the same lines as Voice for CCTV, backup or Disaster Recovery.
ISDN30 channels connect to a Telephone System where you manage your extensions, Hunt Groups, DDIs and advanced Unified Communications management. Our Technical Consultants will work with you to develop the best blend of features and functions for your communication strategy.
Use our Configurator for simple installations under 10 channels, with basic features, or speak to our Technical Consultants on 0800 652 7453 for more complex functionality.