Mitel 3300

[EpoUser08]

Does the 3300 support ISDN DASS trunks?

 

[kwbMitel]

DASS II Voice I (EMEAAP only) Description
Overview:
This feature allows basic calls to be made from the system to a DASS II protocol Central Office (CO), using E1 Digital trunks and DASS II signaling. Digital Access Signaling System Number 2 (DASS II) is a signaling system which allows access to the British Telecommunications plc (BT) network over a digital line from a system to the local exchange. From the local exchange, the system user has voice and data access to the Integrated Services Digital Network.

Traffic between the local exchange and the system travels over a 2.048 Mbps digital link. Thirty voice or data channels are multiplexed into the link. Each channel can handle data at baud rate of 64kb/s.

The 3300 ICP uses the Universal Network Services Unit (NSU) which supports E1 CEPT links, as the interface with the Multiple Integrated Digital Access (Multi IDA) public network. This unit is also used as the interface with a DPNSS private network and the two circuits on a card can be arranged with one connected to DASS II and the other connected to DPNSS.

The information sent in a DASS II call can include the identities of the caller and the destination. This information can be displayed on a telephone or console and can include the location directory number and the system extension number. This information can be suppressed in customer data.

DASS II circuits can be used to provide:

Two-way voice and data traffic

DISA lines

DDI lines

Incoming lines to the operator's console or to other answer points.

By virtue of its digital operation, DASS II allows fast call set-up and loss-free working between the system and the local exchange.

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