The OSSI (Operations Support Systems Interface) protocol is used in Avaya products to interface various optional modules with the main PBX module, in this case, Communication Manager. It can be accessed by simply selecting the correct terminal type while connecting to the server.
Two types of terminals are ossi and ossimt.
- ossi is used to work directly with CM, receiving information and making changes to the configuration of the PBX.
- ossit is used to match the field identifier used in the first type with its actual purpose.
Output screen for command "c mon bcms skill 1" from putty using ossit terminal is as below,
A list of these pointers here are,
- c (command) - pointer to the string containing the executable command
- f (field) is a pointer to a string containing field identifiers
- d (data) - pointer to the string containing the data, per under with the field
- e (error) - pointer to the string containing the error message
- t (terminate) - pointer to the end of input/output information