Question

Which fax protocol can you secure using srtp?

Answer 1

Answer:

Configuring Cisco Fax Relay

Cisco fax relay on an IP network. With Cisco fax relay, gateways terminate T.30 fax signaling by spoofing a virtual fax machine to the locally attached fax machine. The gateways use a Cisco-proprietary fax-relay RTP-based protocol to communicate between them.

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