Your network must meet the following requirements to support Information Forwarding:

• Both the private and public networks must support end-to-end transport of codeset 0 user data either as UUI IE or QSIG Manufacturer Specific Information (MSI) in the SETUP and DISCONNECT ISDN messages. Private networks can be configured for either non-QSIG transport by way of a codeset 0 UUI IE or QSIG transport by way of MSI packaged in a codeset 0 Facility IE. Public networks do not currently support QSIG and user data can only be transported by way of the UUI IE when supported by the network. Future public network offerings can support QSIG by way of a VPN.

• Communication Manager must support the ISDN country protocol.

  Important:

  If testing has not been done to verify operation over the public networks involved with the preferred specific configuration, use private ISDN trunking between the nodes until successful testing is complete.

• The network byte limit for the user data portion of user information contents must carry the data needed for the customer application.

Some public network providers require service activation or fees for user information transport.