[SIPForum-discussion] Need Help for SDP Specification - c=*

[Pranab Bohra]

Hi,

c= line IS mandatory.
It MUST be present *either* in session level, *or* in *each* of the media
descriptions (m= line).
If present in session level, the network address ( and the family) is
inherited by each of the media descriptions in SDP.

The c= line MAY be present in both session level and media description, in
which case, the media description c= line overrides the session level c=
line.

Programmers can draw an analogy with object oriented languages like C++ or
Java.
Interface defined by the base class may be overridden by derived classes.

Thanks,
Pranab


On Mon, Nov 4, 2013 at 10:03 AM, Anil Patil <patil22patil at gmail.com> wrote:

> Hi All,
>
>
>
> Why c=* parameter in not a mandatory parameter in SDP
>
>
>
> C= (connection information -- not required if included in all media)
>
>
>
> Can any once explain with real time example so it will easy to understand.
>
>
> thanks
>
> Anil....
>
>
>
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