User guide

4. Configure incoming Ring Cadence to FXO Gateway

Advance



Ring to configure proper Ring Cadence ( Ring ON time and Ring

OFF time ) according to the PABX or PSTN ring Cadence specification.

Without configuring Ring Cadence to FXO gateway properly according to PABX

or PSTN Ring Cadence, FXO may detect Ring signal in a strange behavior and

cause abnormal operation.

seconds OFF. Some PABX or PSTN provides 1 second ON and 3 seconds OFF

second ON and 3 seconds OFF to match incoming Ring signal. See Figure 17.

See Figure 17.

5. Enable Caller ID function at FXO and FXS gateway.

The Caller ID configuration at FXO gateway should be configured to match

PABX extension or local PSTN Caller ID incoming signal in order to carry this

signal to remote FXS gateway to display at FXS analog phone set. Of course,

the remote FXS Gateway also has to enable Caller ID generation function ( see

Figure 21. ) Here are steps to enable FXO Caller ID detection specification and

enable FXS gateway Caller ID generation steps.

FXO gateway is the same as PABX extension or local PSTN switch which

ID mode you need to configure at FXO gateway, please consult to PABX

suppliers or PSTN local switch technician to support you. In global market,

there are several Caller ID modes which are most used such as Bellcore FSK,

ETSI FSK, ETSI DTMF, Danish DTMF, India DTMF, Brazilian DTMF. See Figure

18.

When you connect Dynamix 2540 FXO gateway Lines to local PABX’s extension

or PSTN switch, please go to Dynamix 2540 webpage setting at VOIP

Dynamix 2540 factory default Ring Cadence setting is 2 seconds ON, 4

Ring Cadence. In this case, please configure Dynamix 2540 Ring Cadence to 1

Step 1: Make sure the Caller ID mode you have configured to

Dynamix 2540

Dynamix 2540 FXO Line ports have connected. If you don’t know what Caller