Ericsson ZAT 19.2 Operation Manual page 27

2.6 Howto Dial a Number
2.6.1 AT
Use the D-command to dial a number.
The D-command has the format Dn, in which n is a character
string of up to 80 characters (the length of the command buffer)
Examples using the AT command set:
When connected to a public exchange
ATDT473701 1710 eel)
D «Dial number» command
T Touch Tone Dial
4737011710: Required number
Connected to a private exchange
ATDTOW473701 1710. giel|.
D:
«Dial number» command
T: Touch Tone Dial
W: Wait for trunk line (second dial
tone)
4737011710: Required number
required number.
tone)
4737011710 Required number
Wan 4d AA A Pan Pn 409A