Digital Access Signaling System 2 (DASS2) is a protocol defined by British Telecom for digital links to PSTN based on ISDN.
It is an improved version based on experiences with DPNSS.
... vulva between the clitoris and the vaginal opening.
In the human male, the urethra is about 8 inches (200 mm) long and opens at the end of the penis.
Medica ...