ATLAS 550 System Manual - Adtran

ATLAS 550 System Manual Section 4 User Interface Guide
SIGNALING METHOD
Write security: 3; Read security: 5
Defines the mode of operation of the selected voice port. The signaling on the T1 mapped to this
voice port must match. The options include LOOPSTART, GROUNDSTART, and PLAR.
ANSWER SUPERVISION
Write security: 3; Read security: 5
Configures answer supervision for the appropriate voice port. Answer supervision (when the far end
answers the call) is indicated by using reverse battery polarity. This is valid for an outbound call
only. On an FXS interface type we respond to LSAS (Line Side Answer Supervision) signaling on
the T1. Our response is to reverse battery polarity on (T-R). Telco must configure their T1 for LSAS
if this is not a point-to-point T1.
E&M CONVERSION
Write security: 3; Read security: 5
Configures the selected voice port for E&M signaling conversion. By enabling this option, other
selections become available that are E&M trunk specific. This option is sometimes referred to as
TANDEM conversion. The following submenu items become visible when E&M CONVERSION is
ENABLED:
E&M SUPERVISION
Write security: 3; Read security: 5
(Available only when E&M CONVERSION is enabled.) Configures the E&M trunk as either Immediate
start or Wink start. This configuration is for the Rx and Tx direction. When DNIS delay is set, this
option only configures the Rx direction.
DIAL TONE
Write security: 3; Read security: 5
(Available only when E&M CONVERSION is enabled.) Configures the ATLAS 550 to generate Dial
Tone out the selected FXS port in response to the 2W going off hook (outgoing call). Generally, dial
tone is provided by the Class 5 switch delivering the T1, but in some instances, the switch cannot
provide dial tone.
RINGBACK
Write security: 3; Read security: 5
(Available only when E&M CONVERSION is enabled.) Configures the ATLAS 550 to generate
ringback tone to the far end while the selected FXS port is ringing. Generally, ringback is provided
by the Class 5 switch delivering the T1, but in some instances, the switch cannot provide ringback
tones.
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