General Parameters

Defines the T310 override timer for DMS, Euro ISDN, and ISDN NI-2 variants. An ISDN timer is started when a Q.931 Call Proceeding message is received. The timer is stopped when a Q.931 Alerting, Connect, or Disconnect message is received from the other end. If no ISDN Alerting, Progress, or Connect message is received within the duration of T310 timer, the call clears.

The valid value range is 0 to 600 seconds. The default is 0 (i.e., use the default timer value according to the protocol's specifications).

Note:

Defines the override T310 timer for the DMS-100 ISDN variant. T310 defines the timeout between the receipt of a Proceeding message and the receipt of an Alerting/Connect message.

The valid range is 10 to 30. The default is 10 (seconds).

Note:

Defines the override T301 timer (in seconds). The T301 timer is started when a Q.931 Alert message is received. The timer is stopped when a Q.931 Connect/Disconnect message is received from the other side. If no Connect or Disconnect message is received within the duration of T301, the call is cleared.

The valid range is 0 to 2400. The default is 0 (i.e., the default T301 timer value - 180 seconds - is used). If set to any value other than 0, it overrides the timer with this value.

Note:

Defines the T3_JA timer (in seconds). The parameter overrides the internal PSTN T301 timeout on the Users Side (TE side). If an outgoing call from the device to ISDN is not answered during this timeout, the call is released.

The valid value is -1 to 300. The default is 0 (meaning 50 sec). The value -1 means that no timer is activated.
Note:

Defines the scenarios upon which the device activates PSTN Fallback for digital interfaces. When PSTN Fallback is triggered, the device automatically routes incoming Tel calls to the PSTN (instead of to the IP).

PSTN Fallback is provided by two ports, where one port is connected to the PBX, for example, and the other to the PSTN. When PSTN Fallback is triggered, for example, due to a power outage, the device automatically connects the two ports using a metallic relay switch. In such a scenario, calls originating from the PBX are routed directly to the PSTN (instead of the IP network). For more information on PSTN Fallback cabling, refer to the Hardware Installation Manual.

Note:

Defines the administrative state for all trunks.

Note:

Defines the administrative state per trunk, where x denotes the trunk number.

Defines static TDM hairpinning (cross-connection) performed at initialization. The connection is between trunks with an option to exclude a single B-channel in each trunk. Format example: T0-T1/B3,T2-T3,T4-T5/B2.

Note:

Enables two trunks that are connected through TDM hairpinning to signal the Far-End about the presence of PSTN alarms. When the trunk with TDM hairpinning receives a PSTN alarm, its' connected trunk sends an AIS alarm to its' Far-End.

Note:

Enables TDM tunneling for all calls (trunks).

Note:

Enables TDM tunneling for a specific trunk. For a description of the parameter, see the [EnableTDMoverIP] parameter.

Defines the ISO 8859 character set type (languages) for representing the alphanumeric string of the calling name (caller ID) in the forwarded message, for IP-to-Tel and Tel-to-IP calls.