Skill

Dual tone multi-frequency (DTMF)

March 2024 with Lalo Nunez

Join Lalo Nunez as we learn all about the protocols and techniques that make digital telephony possible. We'll be learning about and practicing with DTMF, RFC 2833, RFC 4730, the unsolicited notify feature, DTMF and MTP, SIP INVITEs, and performing packet captures.

Recommended Experience

Knowledge of VoIP fundamentals
Experience administering Cisco collaboration solutions and CUCM
Professional networking experience

Related certifications

CCNP Collaboration

Related Job Functions

Collaboration engineer (Cisco)
Network Operations Center (NOC) technician
VoIP administrator

All it took was the command prompt in Windows 95 to get Lalo hooked on technology. Nowadays, his passion is Cisco collaboration technology.

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Skill Outline

1. Introduction (1:20)
2. Dual Tone Multi-Frequency (DTMF) (7:20)
3. Named Telephony Events (RFC 2833) (7:48)
4. Key Press Markup Language (RFC 4730) (5:41)
5. CUCM and Unsolicited Notify (UN) Messages (3:19)
6. DTMF and MTP (3:49)

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