[SIPForum-techwg] Media line Transparency
theo at crazygreek.co.uk
Wed Feb 11 06:53:54 EST 2009
On Wed, Feb 11, 2009 at 3:40 AM, Bharrat, Shaun <SBharrat at sonusnet.com> wrote:
> I missed this in Section 6.1 before...
> 1. MUST accommodate unsupported (and unrecognized) media types by passing SDP media lines and attributes unchanged, and
> Am I misreading this or is this saying that an SP-SSE effectively is
> barred from mediating or policing the media should the SIP-PBX provide
> an unknown codec? I cannot understand how this can be a MUST. If
> an enterprise pays for G711, the SP-SSE should not be obligated to
> accept anything else, whether or not it understands the other media
> lines and/or codecs.
> Can someone elaborate.
In which case, the call would be terminating on an UA inside the
SP-SSEs network (i.e, a PSTN gateway) - the above text, *end to end*
transparency, is relevant to SP-SSE SIP elements between the UAC and
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