Aastra 5370ip Brochure Aastra 400 - Page 17

SIP networking Virtual 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. The Aastra 400 communication platform allows the networking of up to 100 other Aastra systems or SIP-capable, third-party systems. The most important advantages:  With SIP networking, more functions are available than with normal dial-up connections via the public network.  Reduces communications costs signi­ ficantly, since it is often far less expen­ sive to make calls via the internet than via dial-up connections on the public network. Virtual networking is needed, in particu­ lar, by companies with geographically distributed locations without intercon­ nected data networks. This is especially important if the level of call traffic between individual locations is rather low such that it is not worth it to have some leased lines or to set up a private data network. A virtual network is set up in such a way that employees in other locations­ can be called with their internal call Thanks to the comprehensive SIP numbers. Connection is automatically implementation, Aastra 400 com­ set up by the system, via the public net­ munication systems play a key role work. Many network providers have for: special offers for customers with subsid­ iaries, which also contributes to cost  Integration of IP and WLAN termi­ efficiency. nals  Professional, mobile voice commu­ nication  Trunk interfaces to public networks  A network of different SIP-compa­ tible communications systems  Integration of SIP-based applica­ tions (for call centres, operator consoles, softphones, etc.) The Advantages:  Inter-site internal call numbers  Central services, i. e. forwarding  Minimum network installation and maintenance costs  No monthly fees for leased lines 17