iCal on the iPhone seems to rely on the {urn:ietf:params:xml:ns:caldav}max-attendees-per-instance property to determine whether to enable attendee invitations and replies. The following patch returns a constant number of 100 attendees per meeting, which is what Apple's Darwin CalendarServer returns. Feel free to change this to a bigger number, if you think anyone will want to enter more users on an iPhone :-)

SOPE diff:

#

old_revision [c9723068f0534907bfebec9248331816410a6e25]

#

patch "sope-appserver/NGObjWeb/DAVPropMap.plist"

from [d334c60520b05fa7d4452bf3efaba29d1e71e0a7]

to [bca03b3cfb12cfd389ebfcbc0e4dc3d812db711e]

#

--- sope-appserver/NGObjWeb/DAVPropMap.plist d334c60520b05fa7d4452bf3efaba29d1e71e0a7
+++ sope-appserver/NGObjWeb/DAVPropMap.plist bca03b3cfb12cfd389ebfcbc0e4dc3d812db711e
@@ -160,6 +160,7 @@
"{urn:ietf:params:xml:ns:caldav}calendar-timezone" = davCalendarTimeZone;
"{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL" = davScheduleDefaultCalendarURL;
"{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp" = davScheduleCalendarTransparency;

• "{urn:ietf:params:xml:ns:caldav}max-attendees-per-instance" = davMaxAttendees;

  / CardDAV /
  "{urn:ietf:params:xml:ns:carddav}address-data" = davAddressData;

SOGo diff:

#

old_revision [9b0e70cef01c0afdbc1684211507c86871122671]

#

patch "SoObjects/Appointments/SOGoAppointmentFolder.m"

from [0d77c8287292505ad328c1d5e13d8ed818111e16]

to [826925c87b4f9ae96945443b37a02c3b1150bd1e]

#

--- SoObjects/Appointments/SOGoAppointmentFolder.m 0d77c8287292505ad328c1d5e13d8ed818111e16
+++ SoObjects/Appointments/SOGoAppointmentFolder.m 826925c87b4f9ae96945443b37a02c3b1150bd1e
@@ -2038,6 +2038,11 @@ firstInstanceCalendarDateRange: (NGCalen
return @"";
}

+- (NSString *) davMaxAttendees
+{

• return @"100";
  +}
• • (NSArray ) davScheduleCalendarTransparency
    {
    const NSString opacity;