D-Channel Handler; Interworking; Call Processing For Etsi Pri Originations - Nortel DMS-250 Reference Manual

D-channel handler

Backup D-channels are not supported for ETSI PRI. The datafilling of more
than one D-channel for an ETSI PRI trunk group in table TRKSGRP is not
supported.

Interworking

The following interworking trunk configurations are supported:

Call processing for ETSI PRI originations

The following information applies to ETSI PRI originations.
The DTCOi+ integrates into the DMS-250 switch in the same manner as
the PTDC and is referred to in the switch (for example, at the MAP
terminal) as a "PDTC."
The DTCOi+ is similar to the DTCOi except that DTCOi+ uses the
single unified processor instead of dual MP/SP processors.
DTCOi+ uses the enhanced ISDN signaling processor to provide
D-channel processing for ETSI PRI.
DTCOi+ uses the 6X44EA time switch for data and A-law or mu-law
pulse code modulation voice conversions.
The universal tone receiver is used for inband digit collection. The single
tone receiver is not currently supported on the DTCOi+.
ETSI PRI does not support the partitioning of an E1 interface into
separate trunk groups. Also, a D-channel cannot control trunks across
multiple E1 interfaces. Therefore, with ETSI PRI, each E1 interface
corresponds to a single trunk group and its associated D-channel.
ETSI PRI to/from inband DAL
ETSI PRI to/from North American PRI
ETSI PRI to/from MCI ISUP IMT
ETSI PRI to/from ITU ISUP RSLR
ETSI PRI to/from MR2
ETSI PRI to/from RSLR OPT2
ISUP RLT to ETSI PRI
Digital Switching Systems DMS-250 ISDN Reference Manual MWC14 (CSP14)
ETSI PRI 13-5