# Overview of the MCC SDP library

The MCC SDP library provides functions that describe session-level and media-level information for a media session. Session-level information includes the session name, session version, and originator of the session. Media-level information includes the media type, connection information, and codec information.

The MCC SDP library focuses on the parts of SDP applicable to the Offer/Answer model used by SIP. This model is defined by RFC 3264, An Offer/Answer Model with Session Description Protocol (SDP).

You can use the MCC SDP library to do the following:

- Read an SDP message

- Create an SDP message

- Print an SDP message

The following table shows the SDP fields that the MCC SDP library enables you to create:

Abbreviation | Description
v | Protocol version field
o | Session owner and identifier field
s | Session name field
i | Session information field or media information field
c | Connection field
a | Session attribute field or media attribute field
m | Media description field

Note: There are no MCC SDP functions available for creating SDP session-level u, e, p, b, t, and k fields and media-level b and k fields.