Et stort utvalg grensesnittkort gjør at man kan bruke tradisjonelle analoge og digitale terminaler,
så vel som å koble seg til offentlige nettverk via analoge eller ISDN-baserte linjer.
Aastra 400 er et IP-basert system: Bedriftens datanettverk (LAN) brukes til taleoverføring. Telefonene er koblet direkte til nettverket på samme måte som en PC. Aastra 400 danner grunnlaget for overgang til ulike teknologier. Aastra 400 støtter ikke bare tradisjonelle telefoner, men også andre, innovative kommunikasjonssystemer. Målet er å samordne ulike tjenester (tale, e-post, video, chatting, osv.) – samordnet kommunikasjon – og tilby dem i ett enkelt brukergrensesnitt.
Geographically distributed locations but still as a company single entity: this is possible thanks to Aastra 400 networking solutions. For companies with subsidiaries, up to 40 locations and up to 600 users can be integrated into a homogeneous communication system via the data network. Employees see it as a single system; even colleagues in a foreign location are reached as in-house employees.
- SIP Networking: Networking based on the open, global SIP is the most universal method of linking several systems together via a private data network or via the internet. SIP is supported by many manufacturers worldwide.
- Virtual Networking: Virtual networking is needed, in particular, by companies with geographically distributed locations without interconnected data network. A virtual network is set up in such a way that employees in other locations can be called with their internal call numbers. Connection is automatically set up by the system, via the public network. Many network providers have special offers for customers with subsidiaries, which also contributes to cost efficiency.
