Assuming successful auth in check_peer_ok(),

I. These dialog fields are set, mostly from the peer, 
   in both create_addr_from_peer() and check_peer_ok():
-------------------------------------------------------

	flags[0..2]
	peername
	authname
	peersecret
	peermd5secret
	mohsuggest
	mohinterpret
	parkinglot
	engine
	dialog
	fullcontact
	accountcode
	context
	language
	cid_num
	cid_name
	cid_tag
	noncodeccapability
	capability
	prefs
	jointnoncodeccapability
	timer_t1
	timer_b
	autoframing

DISCREPANCIES:
	disallowed_methods: is set, but set_pvt_allowed_methods () called only in check_peer_ok()
	t38_maxdatagram and set_t38_capabilities(): set/called, but ast_udptl_new_with_bindaddr() is called only in create_addr_from_peer()

FUNCTIONS:
	ast_rtp_codecs_packetization_set(ast_rtp_instance_get_codecs(dialog->rtp), dialog->rtp, &dialog->prefs);
	ast_cc_copy_config_params(dialog->cc_params, peer->cc_params);
	dialog_initialize_rtp()

II. These are set only in create_addr_from_peer()
-------------------------------------------------

	mwi_from
	tohost
	fromdomain
	fromuser

	directmediaha
	portinuri
	fromdomainport
	allowtransfer
	maxcallbitrate

	peerauth   !! not setting it is known to be a problem

	rtptimeout !! also a problem, and also:
	
The following rtp setup code is found only in create_addr_from_peer():

	if (dialog->rtp) { /* Audio */
		ast_rtp_instance_set_prop(dialog->rtp, AST_RTP_PROPERTY_DTMF, ast_test_flag(&dialog->flags[0], SIP_DTMF) == SIP_DTMF_RFC2833);
		ast_rtp_instance_set_prop(dialog->rtp, AST_RTP_PROPERTY_DTMF_COMPENSATE, ast_test_flag(&dialog->flags[1], SIP_PAGE2_RFC2833_COMPENSATE));
		ast_rtp_instance_set_timeout(dialog->rtp, peer->rtptimeout);
		ast_rtp_instance_set_hold_timeout(dialog->rtp, peer->rtpholdtimeout);
	}
	if (dialog->vrtp) { /* Video */
		ast_rtp_instance_set_timeout(dialog->vrtp, peer->rtptimeout);
		ast_rtp_instance_set_hold_timeout(dialog->vrtp, peer->rtpholdtimeout);
	}
	if (dialog->trtp) { /* Realtime text */
		ast_rtp_instance_set_timeout(dialog->trtp, peer->rtptimeout);
		ast_rtp_instance_set_hold_timeout(dialog->trtp, peer->rtpholdtimeout);
	}
	
FUNCTIONS:
	ref_proxy(dialog, obproxy_get(dialog, peer));


III. Only set in check_peer_ok()
--------------------------------

	jointcapability
	callingpres
	amaflags
	maxforwards
	subscribecontext

FUNCTIONS:
	do_setnat(p);