LANCOM VoIP Routers: PBX Functionalities Chapter 1: Introduction6EN1 IntroductionLANCOM Business-VoIP-Routers can provide small companies or subsidiarieswith all of the functions of a classical private branch exchange (PBX). Connection of telephones and fax machines (ISDN or analog) Internal telephone calls between all connected subscribers Telephony functions such as call hold, swap, connect or call transfer(redirect calls) Hunt group function with flexible call distribution and cascading of huntgroupsAlong with these functions familiar from ISDN PBXs, the LANCOMBusiness-VoIP-Router can also utilize all of the advantages of modern VoIPinfrastructure: Choice of telephony via analog, ISDN or SIP (e.g. Internet telephony) Integration of SIP telephones and softphones Telephony between sites by using SIP via VPN Automatic directing of calls with intelligent call routing Configuration of dispersed PBXs by one central IT departmentThis documentation assumes that the basic configuration for your LANCOMdevice (Internet access, security settings) has been carried out already. Themanual on PBX functions of LANCOM Business-VoIP-Routers deals with thefollowing subjects: Making calls with telephones and softphones Connecting the LANCOM Business-VoIP-Router to the telephone network Connecting terminal equipment to the LANCOM Business-VoIP-Router Configuring the PBX functions Activation of the VoIP-32 Option This description is limited to a description of operating the LANCOMBusiness-VoIP-Router as a "stand-alone" PBX. For information onother LANCOM Business-VoIP-Router issues such as the combinationwith existing ISDN PBX systems, connection to an upstream SIP PBX,configuring SIP trunks, or similar matters, please refer to yourproduct's user manual and/or the reference manual.