Aastra 4400 IP Telephones
The Aastra 4400 range support Aastra's MX-ONE, MD Evolution and BusinessPhone Systems. They are easy to migrate, support the major voice codecs including wideband and security protocols including SRTP (Secure Real-time Transport Protocol) and signalling with TLS (Transport Layer Security).
The well established Aastra Dialog 4400 Series comprise of 3 main variants. The entry level Dialog 4420 Basic give you access to the most basic features, the Dialog 4422 Office is the feature rich model as well as a display screen and the 4425 Vision model gives you everything you could need in a busy office including programmable buttons and a large screen with soft buttons.
The Office and Vision Phone can also be improved with the addition of an Add on Module (AOM) with extra key functions.
- Aastra Ericsson Dialog 4420 IP Basic TelephoneThe Aastra 4420 Basic is an entry level IP telephone suited for non communications intensive environments such as office ...£84.00 £70.00
- Aastra Dialog 4425 IP Vision TelephoneThe Dialog 4425 IP Vision is a multi-featured IP phone supporting advanced system functions.As low as £138.00 £115.00