In order to integrate reliably between the HIS PMS system and the NuPoint Voice system, the following protocol has been developed. The protocol contains three layers; physical, link, and message. This protocol conforms to the "HIS Standard Communications Protocol for Full Duplex Operations" fully with the following stipulations:
Electrical Interface: EIA RS232C - Type D electrical standard compatibility. Connection is via a DB25-pin male connector.
Signal Form: EIA RS404.
Interface Distance: Maximum 50 feet. Interface unit to Interface Processing Unit direct connection. Distances exceeding 50 feet require a line driver.
Operation Mode: Full duplex.
Appearance:
Data Rate: 2400 Baud Asynchronous
Byte Framing: 10 bits, (1 start, 7 data, 1 parity, 1 stop),
even parity.
There are six messages defined for the protocol as follows:
Message number 1 is RESYNC.
Message number 2 is ROOM OCCUPIED.
Message number 3 is ROOM VACANT.
Message number 4 is MESSAGE WAITING STATUS.
Message number 5 is BAD MAILBOX ADDRESS.
Message number 6 is SEND MESSAGE WAITING STATUS.
With the HIS PMS integration, an additional menu choice (G) has been added to the System Maintenance Menu to allow the system administrator to re-synchronize the state of all the mailboxes being supported by the PMS.
The HIS PMS Integration supports message waiting notification through the PMS system. A message waiting type has been added to the system called "HIS PMS." See Assign Message Waiting Type to a Mailbox.
See the Appendix for detailed diagnostic information available through the error log file, the CDR file and the system console.