Who is speaking about Voice over IP (VoIP) most often means the usage of VoIP with SIP (Session Initiation Protocol) at the same time.
SIP is a standardized protocol which is responsible of signalling the connection and disconnection of voice communication in the IP net.For the transmission of voice and data on the same cable the internet protocol (IP) and SIP have been established.
All products (terminals, PBXs, software, …) which are using these protocols can communicate with each other.
Aastra offers a variety of VoIP- and SIP-based products for small, medium and large enterprises.
- SIP terminals
A family of business SIP telephones
- DECT over IP – mobility in IP networks
The advantages of VoIP, DECT and SIP merge to a solution for integrating mobility in IP networks
- PBXs
TC-system, ITC-system, communication server: all these words describe Aastra´s telephone systems with its
- Ascotel IntelliGate,
- NeXspan and
- OpenCom.
The systems offer a variety of possibilities for the convergence between Time Divison Multiplex and VoIP.
- WLAN telephone
For voice communication in WLAN networks using SIP Aastra offers the mobile handset Aastra Phone 312.
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