I have been looking into http://track.sipfoundry.org/browse/XTRN-931 and
it looks like the problem is related to the m-line in SDP generated by
sipXpage.

When sipXpage answers a call it generates SDP with the following m-line:
m=audio 8502/2 RTP/AVP 0

According to section 5.14 of rfc4566
(http://tools.ietf.org/html/rfc4566#section-5.14) <port>/<number of
ports> format is used for:
"... applications where hierarchically encoded streams are being sent to
a unicast address, it may be necessary to specify multiple transport
ports..."

What is the rational for using this format in sipXpage? What is a
specific use of this format by the caller or paged sets?

Thank you in advance,
Mark.

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