IPv6 can be used in OpenScape 4000 Softgate on the vHG3500 SIP trunking
(SIP-Q and native SIP) routes.
SIP trunking can be used between different HiPath 4000 V6/OpenScape
4000 systems (SIP-Q) or between a HiPath 4000 V6OpenScape 4000 system
and an external IPv6 partner, e.g. OpenScape Voice or SIP service providers
(native SIP).
For internal connectivity, IPv6 can be used between the OpenScape
4000 central switch and OpenScape 4000 SoftGates (TCP signaling) as well
as between individual OpenScape 4000 SoftGates (RTP payload).
Common gateways (HG 3500) and IPDA boards (NCUI) do not support IPv6.