Nortel CCM7 use InterSystems Cache DB.
Create a link from SQL SERVER to Nortel CCM7 as below:
1. Install InterSystems ODBC driver for SQL SERVER host.
2. Create a ODBC UserDSN for SQL SERVER host.
3. Add a link server on SQL SERVER.
EXEC master.dbo.sp_addlinkedserver
@server = N'CCM7',
@srvproduct=N'MSDASQL',
@provider=N'MSDASQL',
@datasrc=N'BJ_CCM7_DSN',
@catalog=N'CCMS_STAT'
GO
EXEC master.dbo.sp_addlinkedsrvlogin
@rmtsrvname=N'CCM7',
@useself=N'False',
@locallogin=NULL,
@rmtuser=N'YourAccount',
@rmtpassword='YourPWD'
GO