Samsung OfficeServ 7400 General Description Manual

Also see for OfficeServ 7400: System administration guide User guide User instructions Technical manual General description

Contents

CHAPTER 4. OfficeServ 7400 Functions4-2 © Samsung Business Communications4.1.2 VoIP UMS InterfaceAuto Attendant/Mail Box InterfaceThe OfficeServ 7400 uses SIP and RPT, the VoIP protocols, to provide the auto attendantand mailbox functions through the UMS and IP network operating in the feature server. Tointerface with the VoIP UMS, the MGI module should be installed in the system.E-mail NoticeThe system periodically checks whether any e-mails are received in the e-mail account reg-istered to the UMS and notifies the result to the user by voice or through the LCD screen orLED of the phone. To be notified by voice, the user needs to set the TTS (Text-To-Speech)function.4.1.3 Router ALG InterfaceNAT Application Level Gateway (ALG)When functions, such as VoIP signal processing and the gateway function, executedthrough the IP network in the system, are executed in the Network Address Transla-tion (NAT) network, the conversion between the private IP address and public IP addressshould be performed. In this case, the call server and the data server interface with eachother and share the information on the conversion between the private IP and public IP.This enables the OfficeServ 7400 to provide services smoothly. This function operates onlybetween the call server and data server.Firewall ALGWhen functions, such as VoIP signal processing and the gateway function, executedthrough the IP network in the system, are executed in the network that has a firewall, thesystem should be set to prohibit the firewall from cutting off the packet automatically (notmanually) for smooth firewall traversing. This function operates only between the callserver and data server.VPN ALGWhen functions, such as VoIP signal processing and the gateway function, executedthrough the IP network in the system, are executed in the Virtual Private Network (VPN),the system should be set to prevent packet blocking during IP address conversion due totunnelling. In this case, the call server and data server interface with each other and sharethe tunnelling conversion information for smooth services. This function operates only be-tween the call server and data server.