Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 107 Ver. 1.00 – 10/29/2008
2.1.5.2 AT+VTS DTMF and Tone Generation
(continued)
Parameter Values
<DTMF> 0
1
2
3
4
5
6
7
8
9
A
B
C
#
*
Reference GSM Ref. 07.07 Chapter C.11
Standard Scope Optional
Enfora Implementation Scope Partial
Notes In GSM this operates only in voice mode.
Fixed tone duration.