TN2501 Voice over the LAN (VAL)

The TN2501 Voice over the LAN (VAL) is an integrated announcement circuit pack that

• offers up to 1 hour of announcement storage capacity.
• requires shorter backup and restore times.
• is firmware downloadable.
• plays announcements over the TDM bus.
• has 33 ports, including
• 1 dedicated telephone port for recording and playing back announcements (port number 1).
• 1 ethernet port (port number 33).
• 31 playback ports (ports 2-32).
• 10/100 Mb Ethernet interface, allowing announcement and firmware file portability over your LAN (FTP server functions).
• supports *.wav announcement files.

Important File Specifications

Voice Announcement over LAN (VAL) requires that announcement files are in the following *.wav formats:

• CCITT A-Law or CCITT m-Law (mu-Law) companding format (do not use PCM)
• 8-kHz sample rate
• 8-bit resolution (bits per sample)
• Mono (channels = 1)

You must convert other wave (*.wav) file formats to those listed above. Telephone access creates the correct file formats.

Caveats

Remember the following points when using the TN2501AP integrated announcement circuit pack for the first time:

• Despite the feature name, announcements are not played over the LAN but can be transferred to and from the TN2501AP circuit pack over the LAN.
• You cannot save or restore announcements to a TN2501AP circuit pack to or from
• a TN750C circuit pack
• flashcards
• tape
• magneto optical disks.