New subject: VoLTE Capable LTE Handsets which support IMS uisng IPv4

18 Oct 2017

I would like to support VoLTE using an IPv4 IMS network rather than IPv6
network.  The handsets that I have been trying insist on the IMS network
support either IPv6 or IPv4v6 dual stack.  After giving them IPv4v6
connectivity, I am finding that even though the handsets asked for both IPv4
and IPv6 P-CSCFs, they only try the IPv6 proxy (if only the IPv4 proxy is
provided, they will not try at all).

I am wondering of anyone has worked with any LTE handsets which are willing
to support IMS using IPv4 only.

Thanks,

Ron