void LLIMMgr::inviteToSession(
	const LLUUID& session_id, 
	const std::string& session_name, 
	const LLUUID& caller_id, 
	const std::string& caller_name,
	EInstantMessage type,
	EInvitationType inv_type,
	const std::string& session_handle,
	const std::string& session_uri)
{
	//ignore invites from muted residents
	if (LLMuteList::getInstance()->isMuted(caller_id))
	{
		return;
	}

	std::string notify_box_type;

	BOOL ad_hoc_invite = FALSE;
	if(type == IM_SESSION_P2P_INVITE)
	{
		//P2P is different...they only have voice invitations
		notify_box_type = "VoiceInviteP2P";
	}
	else if ( gAgent.isInGroup(session_id) )
	{
		//only really old school groups have voice invitations
		notify_box_type = "VoiceInviteGroup";
	}
	else if ( inv_type == INVITATION_TYPE_VOICE )
	{
		//else it's an ad-hoc
		//and a voice ad-hoc
		notify_box_type = "VoiceInviteAdHoc";
		ad_hoc_invite = TRUE;
	}
	else if ( inv_type == INVITATION_TYPE_IMMEDIATE )
	{
		notify_box_type = "InviteAdHoc";
		ad_hoc_invite = TRUE;
	}

	LLSD payload;
	payload["session_id"] = session_id;
	payload["session_name"] = session_name;
	payload["caller_id"] = caller_id;
	payload["caller_name"] = caller_name;
	payload["type"] = type;
	payload["inv_type"] = inv_type;
	payload["session_handle"] = session_handle;
	payload["session_uri"] = session_uri;
	payload["notify_box_type"] = notify_box_type;
	
	LLVoiceChannel* channelp = LLVoiceChannel::getChannelByID(session_id);
	if (channelp && channelp->callStarted())
	{
		// you have already started a call to the other user, so just accept the invite
		LLNotifications::instance().forceResponse(LLNotification::Params("VoiceInviteP2P").payload(payload), 0);
		return;
	}

	if (type == IM_SESSION_P2P_INVITE || ad_hoc_invite)
	{
		// is the inviter a friend?
		if (LLAvatarTracker::instance().getBuddyInfo(caller_id) == NULL)
		{
			// if not, and we are ignoring voice invites from non-friends
			// then silently decline
			if (gSavedSettings.getBOOL("VoiceCallsFriendsOnly"))
			{
				// invite not from a friend, so decline
				LLNotifications::instance().forceResponse(LLNotification::Params("VoiceInviteP2P").payload(payload), 1);
				return;
			}
		}
	}

	if ( !mPendingInvitations.has(session_id.asString()) )
	{
		if (caller_name.empty())
		{
			gCacheName->get(caller_id, true, boost::bind(&LLIMMgr::onInviteNameLookup,_1,_2,_3,payload));
		}
		else
		{
			LLSD args;
			args["NAME"] = caller_name;
			args["GROUP"] = session_name;

			LLNotifications::instance().add(notify_box_type, 
					     args, 
						 payload,
						 &inviteUserResponse);

		}
		mPendingInvitations[session_id.asString()] = LLSD();
	}
}