Chapter 1 Getting started 15Survivable Remote Gateway 50 Configuration Guide• analog devices such as fax machinesThe SRG50 is positioned primarily to support IP telephones and clients. However, analog devicescan be supported using analog station modules (ASM), or by using an analog terminal adapter(ATA2) in conjunction with a digital station module (DSM). The SRG50 does not support digitalor ISDN telephones.SRG50 terminologyThe following table identifies SRG50 terms that may be unfamiliar to main office installers. Theyare provided to facilitate communications between SRG50 and main office personnel. In the table,EM refers to a path on the SRG50 Element Manager where the term appears; the paths areprovided for reference and may not represent every appearance of the term.Term DescriptionPort For telephony configuration (EM: Configuration > Telephony), a port is an internalnumber that identifies a physical termination point for a telephone set or a physical trunk.For the configuration of resources (EM: Configuration > Resources) and data services(EM: Configuration > Data Services), port is used in the context of the TCP/IP protocolsuite.IP Terminal IP telephoneEM: Configuration > Resources > Telephony Resources > IP & Application SetsSets Can refer to actual telephones, or to the directory number (DN) assigned to the port towhich a particular telephone is connected.TelephoneEM: Configuration > Resources > Telephony Resources > IP & Application SetsMapping DN to TelephoneEM: Configuration > Telephony > SetsDNEM: Configuration > Telephony > Lines > Target Lines > Target Lines table >Control Set and Prime Set columnsTrunks Trunks refer to external facilities that are connected to the SRG50 and provide incomingand outgoing communication paths. Paths can be physical (examples: loop; PRI; T1) orvirtual (VoIP trunks).EM: Configuration > ResourcesLoop trunk An analog loop (FXO) that connects to the PSTN: a POTS line.Lines A line is the generic term used for all communication paths, both internal and external.EM: Configuration > Telephony > LinesPhysical Lines Physical trunks.EM: Configuration > Telephony > Lines > Active Physical Lines(Lines 061 to 124)
