What does PES stand for?
PES stands for "PSTN Emulation Subsystem"
How to abbreviate "PSTN Emulation Subsystem"?
"PSTN Emulation Subsystem" can be abbreviated as PES
What is the meaning of PES abbreviation?
The meaning of PES abbreviation is "PSTN Emulation Subsystem"
What does PES mean?
PES as abbreviation means "PSTN Emulation Subsystem"
