Avaya's 5400 series digital telephones also deliver productivity boosting features as with the 2400 series. These telephones are a cost-effective choice for any business or contact centre using the IP Office telephone system.

The 5400 series includes 4 models, the 5402, 5410, 5420 and EU24.

Avaya's range of digital telephones are designed to bring state-of-the-art technology directly top your desktop, delivering efficient service and superior voice quality along with cutting-edge communications features.

Avaya's 4600 series IP telephones are designed for organisations that want the benefit of converged communications. The IP phone connects directly to your office LAN, simplifying your communications infrastructure. With the 4600 series telephones, remote employees can access the full set of features while working outside the office location.

The family includes 5 models, the 4601, 4602, 4610, 4620 and EU24.

Avaya's 5600 series IP telephones are designed for organisations using the IP Office telephone system who want a cost-effective way to enjoy the benefits of converged communications. They also connect to your office LAN. With the 5600 series telephones, remote employees can access the full set of features while working outside the office location.

The family includes 5 models, the 5601, 5602, 5610, 5620 and EU24.

The IP series telephones deliver a wide range of productivity boosting features in a device that is easy to use and designed for converged communication environments.