ISDN environment services buffer pool is empty
One of the ISDN protocol components tried to allocate a buffer, but there are no buffers available.
The system may continue without further problems. If further problems do occur, stop and restart the ISDN signalling process using the Custom Server Manager. If the problem persists, call Blueworx Support. When reporting ISDN software problems, take a copy of all files with names beginning es_ in the /var/tmp directory as soon as the error occurs.
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Log, System Monitor