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Section
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The

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and 

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platforms support

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supports Message Session Relay Protocol (MSRP), which is typically used for Instant messaging and File Transfer applications over TCP or TLS. MSRP is established, similar to any other media application such as Audio or Video, using Session Initiation Protocol (SIP) by exchanging the Session Description Protocol (SDP) using the offer/answer model. The

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mostly adheres to RFC 6714 Connection Establishment for Media Anchoring and RFC 4145 TCP-Based Media Transport in the Session Description Protocolwhile also considering the key concepts as defined in RFC 4975. The

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does not provide MSRP B2BUA functionality, and relays MSRP payload while providing peripheral 

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functionality.  

MSRP session setup is similar to audio and video sessions. For details, see MSRP Session Setup and MSRP Call Flow Example pages.

Note
MSRP is not supported by SBC SWe in this release.

 

Note
MSRP/TCP and BFCP/TCP use ephemeral port range and are not displayed as regular media. BFCP/UDP uses media port range (UDP), therefore, it is visible.

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See sipTrunkGroup media - CLI or Sip SIP Trunk Group - Media (EMA) for configuration details.

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See sipTrunkGroup media - CLI or Sip SIP Trunk Group - Media (EMA) for configuration details.

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• CLI: Packet Service Profile - CLI and sipTrunkGroup media - CLI
• EMA: Media Profiles - Packet Service Profile and Sip SIP Trunk Group - Media

NAT

MSRP UAs residing behind NAT can be configured at the SIP trunk group as follows. For example:

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See sipTrunkGroup services - CLI or Sip SIP Trunk Group - Services (EMA) for configuration details.

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