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Dialogic® Brooktrout® Fax

E1 PRI service parameters

See also: Hardware Installation Guides (including cabling)

Ordering E1-PRI (Primary Rate ISDN) Service for a Dialogic® Brooktrout® TR1000 or TR1034 Fax Board

If you order E1-PRI service from the telephone company or PBX vendor, give the representative the following information:

Product Manufacturer: Dialogic Corporation (formerly: Brooktrout Technology)
Product Name: Dialogic® Brooktrout® TR1034+PxH-E1 Fax Board (where 'x' denotes the number of channels active on the card, i.e. 8, 10, 16, 20, 30)
Type of line: Primary Rate, also known as PRI, PRA, E1, S2m, T2, ISDN30e
Signal protocol/Variant: EuroISDN, also known as CTR-3, DSS1, Q.931, I.421, ETSI; not 1TR6, DASS2 or DPNSS
Clock Master/ Emulation: The network side should be configured as an "NT", and the clock should be provided
Framing: CRC-4 multiframing recommended
Line coding: HDB-3
Physical Interface: 120 Ohm or 75 Ohm (also known as 'unbalanced coax'); if your interface is RJ48, then it is 120 Ohm, if it is a coax connection, then it is 75 Ohm (Dialogic supplies a 75 to 120 Ohm converter if your network termination is 75 Ohm)
B Channel Provisioning: Circuit-Switched Voice
Channel Service: 64Kbps clear channel service end-to-end for every call
Call Distribution: Linear, starting from B1
Datalink protocol: Must be point-to-point; the telco specification on E1 service doesn't allow any other datalink protocol
B Channel ID for Outgoing Calls: The Brooktrout board exclusively decides on which B channel an outgoing call will proceed
Compatible Switch Types: Generic ITU-T compliant
In case you need Inbound Routing : Please verify with your telco people that you are receiving a called party number.
In order to receive the digits properly, you will typically have the following callctrl.cfg settings:
reject_incomplete FALSE max_did_digits 20 did_timeout 5


Additional Information:
  • Preferably, you want layers 1 and 2 kept active
  • Please do not ask for a specific HLC, eg "telephony"






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