Ensuring DDI resilience

This white-paper outlines the background as to;

• Why the migration to DDI's across networks will always introduce an unavoidable single point of failure
• How organisations can remove the single point of failure by migrating to new DDI's with the minimum of disruption and inconvenience to callers.

The result of this is that if the guidelines in this documents are followed, it is possible for organisations to adopt new resilient networks and services, removing any Single Points of Failure, and to do so in a way which is easy to manage, transparent and with minimum impact and inconvenience to callers.

This whitepaper provides information about Protecting against incoming call failure within the PSTN