Northern UTA220/UTA220k - Manual (Page 39)

UTA220/UTA220k
4-5
ISDN
NT switches support three Protocol Version Control Issue
Codes (PVCICs), depending on the software version loaded in
the switch. Refer to Table 4-2.
Set the Switch Version option on the TA according to Table
4-3.
ISDN ADDRESSES AND IDENTIFIERS
The TA contains several stored numbers – SPID, DN, and TEI
(Terminal Endpoint Identifier) – used by the network to identify
the TA.
Each logical ISDN link has an SPID that defines the profile of
services and parameters used by the terminal. The SPID is
selected by the network carrier and must be configured into the
TA before it can be used. The SPID is a string of characters or
digits, depending on the switch.
The DN is part of the service profile and is analogous to the
telephone number on the standard telephone network. The DN
identifies incoming calls. On some switches (NTI and NI-1),
the DN must also be configured into the TA; on other switches
(AT&T), the DN is not required.
Table 4-2: Northern Telecom Switch Modes
Switch Version Default Mode Other Modes
BCS29 PVCIC=0 None
BCS30 PVCIC=0 None
BCS31 PVCIC=1 PVCIC=0
BCS32 PVCIC=1 PVCIC=0
BCS33 PVCIC=1 PVCIC=0
BCS34 PVCIC=2 PVCIC=0, 1
BCS35 PVCIC=2 PVCIC=0, 1
BCS36 PVCIC=2 PVCIC=0, 1
Table 4-3: UTA220 Switch Settings
PVCIC TA Switch
Type
TA Switch Version
0 NTI
DMS100 DMS100 PVC-IC0
1 NTI
DMS100 DMS100 PVC-IC1
2 National
ISDN N/A