SwyxConnect, operating at full capacity with Swyx, including master/standby support and SAS, functions as described in the following example; see Fig. C-4: SwyxConnect 5000/8000 as SIP Gateway with SAS.

Swyx is located at the company's main office and is connected to one of the company's branch offices via IP (VPN). SwyxConnect Is located at this secondary location.

Unlike the previous example, the SwyxConnect's SAS application is active here. The remaining configuration of SwyxConnect, concerning the trunks to the PSTN and the trunk for the connection of the ISDN phone, is unchanged.

Please note that the gateway application from SwyxConnect does not connect directly to Swyx via the trunks; instead, all SIP messages are sent and received via the activated SAS application (proxy). Similarly, SIP clients must be configured such that they log in directly to SwyxConnect (SAS application (proxy)). In this configuration, the SAS application can process any transmissions independently, if the IP route between main and secondary location is interrupted. Thus, all SIP clients, which are logged on via SwyxConnect, can call each other directly, as well as any subscribers that are connected via an ISDN/ analog trunk. Calls can likewise be set up to the PSTN, and incoming calls picked up from the PSTN.