Missing or incorrect SPIDs
In most North American ISDN implementations,
Service Profile Identifiers
(SPIDs) must be configured into terminal equipment;
that is, computers, telephones, or other ISDN-enabled
devices, not their network termination devices (NT-1
or NT-2). Without a SPID, the
ISDN terminal device cannot perform
layer 3
initialization and hence cannot make calls, even though
layer 2
initialization successfully completes. If you are unsure about
your SPID setting, contact your ISDN service
provider.
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 22 April 2004