Manual
Page 74
Appendix B Specifications `DTMF Tone Frequency Low Group Frequency (Hz) 697 770 852 941 1209 1 4 7 * High Group Frequency (Hz) 1336 2 5 8 0 1477 3 6 9 # 1633 A B C D *Specification and features subjects to change without notice. 73
Appendix B Specifications `DTMF Tone Frequency Low Group Frequency (Hz) 697 770 852 941 1209 1 4 7 * High Group Frequency (Hz) 1336 2 5 8 0 1477 3 6 9 # 1633 A B C D *Specification and features subjects to change without notice. 73