Appendix A
Special Characters used when writing dialing instructions
These characters perform special functions:
&
– This is a flash-hook which is critical for signaling on analog systems.
,
– The comma is a one second pause.
\
– The backslash is a four second pause.
T
– “T” tells the port to switch to tone (DTMF) dialing. This is the default.
W
– Wait for answer. On encountering this character, SVM 400 will monitor the line for an answer from the
called station before dialing any additional characters. If no answer is detected within 6 ring back cycles or 3
busy cycles, the call will be recalled.
;
– The semicolon is use to wait for dial tone. The SVM 400 will wait up to twelve seconds for dial tone before
dialing any additional characters. If no dial tone is detected the call will fail. This is useful in environments that
may have a shortage of resources such as a limited number of trunk lines or DTMF receivers.
$K
– Stands for key value and causes the SVM 400 to insert the ID number of the last Extension block, Mailbox
Block, or Menu Block input into a dial string.
~di
– This is an instruction to dial in band. It is used only in the pager suffix string, and is present to prevent
conflicts with in band and out of band signaling.
SVM 400 Technical Manual Page 55
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