What is DTMF in SIP?

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Tags

1. #signal
2. #frequency
3. #phone
4. #telephone
5. #generate
6. #disconnect
7. #pulse
8. #ordinary
9. #united
10. #touchtone
11. #generally
12. #touch
13. #known
14. #replaced
15. #states
16. #dialling
17. #multi
18. #press
19. #company