When can I use ISDN RLT call transfer?

Blueworx Voice Response supports one specific version of Nortel’s ISDN RLT call transfer protocol as defined in the Nortel document ISDN Primary Rate User Network Interface Specification,publication number NIS-A211-1, standard release 07.05, issue date May 1997.

The supported switches are listed below with their release numbers:

• Nortel DMS-100 at release level NA007.  

  This version is described in the Nortel document ISDN Primary Rate User Network Interface Specification,publication number NIS-A211-1, standard release 07.05, issue date May 1997.

• Nortel DMS-250 at release level IEC05.

  This version is described in the Nortel document PRI RLT Feature Application Guide publication number 297–2621–347, standard release 02.03, issue date March 1999.

To use ISDN RLT call transfer, you must:

1. Configure your telephony trunk to supply ISDN RLT call transfer.
2. Ensure your Nortel switch is running the specified level of software.
3. Connect your trunk to the Nortel switch.