[Communication Services - Recognize DTMF / Media Streaming] REST API Review

[garchiro7]

Service name: ACS Server Calling
Key contact for this review: fmorales@
Link to previous API version: N/A
Description of the material to be reviewed/changed: C#/Java SDK operations for Recognize DTMF and Media Streaming.
Link to swagger: https://github.com/richardcho-msft/azure-rest-api-specs/pull/5/files
Champion scenarios that briefly explain how developers will use your API:
Recognize: Contoso app can configure recognition of DTMF (dual-tone multiple-frequency) tones while playing IVR audio and takes necessary actions. Document link to a broader explanation.
Media Streaming: Contoso can request streaming of call audio (mixed/unmixed). Document link to a broader explanation.

PR: #19409

[garchiro7]

#20094