Recovery:

1. A MapToDiam PTR is allocated for every pending MAP-to-Diameter transaction. The size of the PTR size is engineered based on an average transaction holding size. If the PTRs become depleted, no new transactions can be processed by the MD-IWF application.
2. Determine if there are long delays in the Diameter or SS7 networks. PTR pool exhaustion can be reduced or eliminated by reducing the MAP timer values.
3. The current MAP timers can be viewed in the GUI at MAP Interworking > Configuration > MD-IWF Options.
4. It is recommended to contact My Oracle Support for further assistance.