4-17Music-On-Hold (MOH)—SourcesThe system provides for up to six different types of MOH source, including silence (“NONE”):None: No audio is played to the listenerTone: A tone or “beep” is repeated at a programmable intervalChime: A music chime source (Old Folks At Home) located on the MCP card is played to the listener.External source: An external source connected to a MISC card, such as a digital announcer or radio,is played to the listener.Digital Announcement on AA card: If the system is equipped with an AA card, the last port of thiscard can be flagged as an MOH source and used to repeatedly play a message recorded on the AAcard to the listener.Voicemail Sound File: If the system has an optional Voice Mail card installed, up to 100 customrecorded sound files from the card can be used for MOH sources. For information on creating thesound files, refer to the Samsung Voice Mail documentation provided with your card or telephonesystem.Networking (PRI / Q-SIG)The networking feature allows up to 50 OfficeServ500 systems to be connected together withimportant feature transparency. The physical connection between the systems is via aproprietary PRI connection and is based on the Q-SIG specification. The following featuresare supported between two networked systems.Call Completion, Busy Station (CCBS) also known as Callback or Busy Station Callback. When astation (A) in one system calls a station (B) in another system across the network link, and station B isbusy, station A can set a Callback to station B. When station B becomes idle, the system will ringstation A; when station A answers, the system will ring station B.Call Completion, No Response (CCNR) also known as Callback or No Answer Callback. When astation (A) in one system calls a station (B) in another system across the network link, and station (B)does not answer, station A can set a Callback to station B. When station B indicates that its user ispresent by becoming busy (e.g. when the user lifts the handset), and then becomes idle again, thesystem will ring station A; when station A answers, the system will ring station B.Call Forward Busy (CFB). Operation is the same as the normal Forward Busy: when the forwardedstation is busy, a calling station will be forwarded to the programmed destination.Call Forward No Response (CFNR). Operation is the same as the normal Forward No Answer: if theforwarded station does not answer after a programmed time, a calling station will be forwarded to theprogrammed destination.Call Forward Unconditional (CFU). Operation is the same as the normal Forward All: all calls to theforwarded station will be forwarded to the programmed destination.Forward External. This feature operates in the same manner as a non-networked system with theexception that, because calls across a network link are trunk calls, network calls do not follow the ICMEXT FWD ON/OFF option in MMC programming. It is therefore suggested that this option be set toON in a networked switch to avoid confusion in operation between networked and non-networked calls.