AT&T 585-300-903 manual Network Considerations, Bcsdc Considerations

A. Network Considerations

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This appendix is targeted for the Business Communications Systems Design Center (BCSDC). Appendix B, Sales Engineering Notes, contains the information that must be completed by the account team and sent to the BCSDC. Every AUDIX Networking installation must be engineered by the BCSDC.

NOTE

The information in this appendix may also be useful to the AUDIX Networking coordinator. The worksheet provided in this appendix should help the coordinator with equipment assignments and extension numbers.

BCSDC CONSIDERATIONS

The BCSDC should consider the following:

∙AUDIX and Switch Equipment: See Chapters 1 through 7 for AUDIX system and switch requirements for each particular setup.

∙Disk Drive Capacities: When an AUDIX system is networked with another AUDIX system, additional demands may be placed on the storage devices. Each AUDIX system is not only asked to store the names, profiles, and messages of its local subscribers, but also the names, profiles, and messages from remote subscribers.

Also, whenever a message is addressed to a remote subscriber, the message is placed in a queue until it can be sent to the remote machine. If the transmission interval is set to deliver remote messages only once or twice a day, the queue area of a particular machine may be asked to store up to 150 messages. Once this limit is reached, a connection to that machine is attempted in order to transmit the messages in queue.

∙Trunking: AUDIX R1V6 or later software can support up to six network calls at one time (provided the system has a TN539 vintage 7 or a TN539B ACCE). However, an AUDIX R1V6 or later system connected to a System 75, System 75 XE, DEFINITY Generic 1 or Generic 3, or MERLIN II network can only support four simultaneous calls (two DCP and two RS-232) if the AUDIX system has a TN539 vintage 7 or TN539B with six ports.

AUDIX R1V5 systems can support four simultaneous calls no matter what switch is used, provided the system has the TN539 or TN539B with six ports (with MERLIN II networking this is assuming two RS-232 ports and two DCP ports).

With that in mind, new trunk circuits may or may not be required between switches in the network. AUDIX system traffic may be able to share existing trunk circuits with other types of inter-node traffic. AUDIX network traffic is determined by the following:

—The configuration of the network (see Figure A-1,Trunking Requirements in an AUDIX Network).

—Does the customer intend on using AUDIX system remote updates feature? If so, and this is generally the case, only a slight additional load is placed on the networking links once the initial exchange of subscriber data is made.

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