Cisco IOS Media Resources Cheat Sheet (DRAFT) by rengu

• Conference bridge
• Music on Hold (MoH)
• Annunc­iator
• Media termin­ation point (MTP)

Unicast MoH call flow is initiated by a message from Unified CM to the MoH server
Multicast MoH call flow is initiated by a message from Unified CM to the holdee device.This message instructs the endpoint device to join the multicast group address

Transr­ating: connects 2 streams that utilize the same codec but with a different packet size.
Tradit­ional transc­oding :Trans­coding from G.711 to any other codec.
Universal transc­oding : Transc­oding between any two non-G.711 codecs.

++A transcoder is capable of performing the same functi­onality as (MTP).
In cases where transcoder functi­onality and MTP functi­onality are both needed, a transcoder is allocated.

Re-Pac­ket­ization of a Stream :transcode G.711 a-law audio packets to G.711 mu-law packets and vice versa
DTMF Conversion : KPML : use a SIP SUBSCRIBE message to register for DTMF digits. Digits themselves are delivered in NOTIFY messages containing an XML encoded body
H.323 Supple­mentary Services
H.323 Outbound Fast Connect
For inbound Fast Start, no MTP is required. Outbound calls on an H.323 trunk do require an MTP when Fast Start is enabled.