Change ATS Ring Cadence, If Wanted

General

Ring signal cadence can be modified by I/O command. The “control telephones at remote nodes” shall when they receive a CSI/control telephony call get a specific ring signal, indicating that it is a call with higher priority. AS parameter 74 controls the function.

Note: The Mitel 6800/6900 SIP phones support a “Bellcore ring cadence”, which can override the internal ring cadence, as a customized ring cadence. This could be used if SIP phones were used instead of analog phones, or if a Terminal Adapter (SIP-Analog) is used.

Prerequisites

The CSI calls shall get a specific ringing on analog phones.

Procedure

1. Change/check the ASPAC parameter 74 setting so it allows ring cadence change.
2. Change the ring signal cadence for analog phones by entering the ring_cadence -c command with appropriate cadence (e.g. “continuous ringing”), if it has to deviate from the applications system’s ordinary cadence.
3. Restart all ELUxx boards, by entering the board_restart command, to make the cadence change take effect.
4. Verify by printing the parameter with the command ring_cadence -p.