Under normal circumstances, communication between the branch office and headquarters takes place via VPN using a DSL/ADSL IP broadband connection, whereby the communication devices in the branch office have full access to the functions of the SwyxWare in the headquarters.

A wide selection of terminals can be used in the branch office. These include analog phone and fax devices, digital phones, SwyxPhone, computer clients , and SIP phones. All functions of SwyxWare are used.

SwyxIt! as a computer client and SwyxPhone can be integrated seamlessly into the branch office environment alongside existing analog, ISDN and SIP phones. This means that all employees can benefit from the advantages of SwyxWare, without having to work in isolation from the existing infrastructure.

If the VPN connection should fail, SwyxConnect will switch to "stand-alone" mode and route all outgoing calls via the internal analog/ISDN connection to the public network (PSTN). The connection from the branch office to a SIP provider can be used as an alternative to the PSTN.

As soon as the IP connection to the headquarters (VPN) is restored, SwyxConnect will switch back to its normal operating mode.

If the VPN connection to the headquarters is lost, telephone communication will only be possible using ISDN and SIP phones. Desktop Client or SwyxPhone need an established connection with SwyxServer to make a call.