[SIPForum-discussion] 180 ringing there is no SDP . so how we are able to listen the ring tone.(ringing).

[raman kumar]

SDP in 181



On 21 Apr 2007 04:22:04 -0000, mwilliam prusty
<callwilliam90653 at rediffmail.com> wrote:
>
> in the 180 ringing there is no SDP i.e no media information. . so how we are
> able to listen the ring tone.(ringing).
>
>
>
> plz answer