[Sofia-sip-devel] Setting Subscription-State Active Field in Unsolicited Outgoing NOTIFY Message

[Jerry R. <je...@to...>]

Hello All,

I am sending an outgoing NOTIFY message using nta_leg_tcreate() and
nta_outgoing_tcreate() and I want to add following header line in the
message:

Subscription-State: active;expires=xxxx

If I add NUTAG_SUBSTATE(nua_substate_active), it does not show up in the
outgoing NOTIFY message.  Does anyone know how to add this line to the
message?  Is there some generic header line tag to do this?

Best Regards,
Jerry