Hi,
I am configuring the nailed up of Genesys SIP Server 8.1 to interface with Avaya.
Environment:
1.	Genesys SIP Server 8.1
2.	Avaya act as Gateway
3.	Using Avaya Phone for nailed up
4.	Genesys SIP Server 8.1 interface with Avaya SES
Genesys SIP Server can set up the nailed up connection as 2 methods:
1.	SIP Server calls the agent to start a session
2.	The agent calls the contact center to start a session
It works fine for 2nd method because I created a routing strategy for agent to park call first.
But I got an issue for 1st method as Genesys SIP Server try to make a call to a nailed up extension but got some error as shown in the log file below:
18:58:42.122: Sending  [0,UDP] 970 bytes to 10.100.6.41:5060 >>>>>
INVITE sip:87312@10.100.6.41:5060 SIP/2.0
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=1B702C33-D41E-424F-8513-0C44A9A60BF8-4
To: <sip:7800@10.100.72.42:5060>
Call-ID: 23C18A27-B42E-404B-BF7D-AEE1521E4B10-3@10.100.72.42
CSeq: 1 INVITE
Content-Length: 195
Content-Type: application/sdp
Via: SIP/2.0/UDP 10.100.72.42:5060;branch=z9hG4bKDC64F3EE-94EA-462D-8771-98589516352C-3
Contact: <sip:anonymous@10.100.72.42:5060>
X-Genesys-CallInfo: routed
Allow: ACK, BYE, CANCEL, INFO, INVITE, MESSAGE, NOTIFY, OPTIONS, PRACK, REFER, UPDATE
P-Asserted-Identity: "Tanarat,Utogsiri" <sip:10.100.6.10>
Privacy: id
Max-Forwards: 69
X-Genesys-CallUUID: EJSK0PFV5H0QN3JLKSCA76CAHG000001
Session-Expires: 1800;refresher=uac
Min-SE: 90
Supported: uui,100rel,timer
v=0
o=- 1345636715 1 IN IP4 10.100.70.42
s=-
c=IN IP4 10.100.70.42
b=AS:64
t=0 0
m=audio 2058 RTP/AVP 18 127
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:127 telephone-event/8000
18:58:42.122: SipDialog: event SEND_INVITE, t=5, s=2, r=7, m=03491f9c
18:58:42.122 SIPCONN(87312): HandleSipDialogEvent(SEND_INVITE) - filtered
18:58:42.122 SIPCONN(87312): sdp state SDP_STATE_NULL, event SDP_OFFER_SENT
18:58:42.122 SIPCONN(87312): new sdp state SDP_OFFER_SENT, event SDP_OFFER_SENT
   -- thisCall by party
18:58:42.122 --- CIFace::Request ---
18:58:42.122  -- deleted: CRequest@3498960 RequestPrivateService-IW_1801[468]/6
18:58:42.122: $-TLIB:CTI:Unknown:0:758
18:58:42.122: $+NET:SIP::0:0
18:58:42.122: SIPTR: Received [0,UDP] 426 bytes from 10.100.6.41:5060 <<<<<
SIP/2.0 100 Trying
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=1B702C33-D41E-424F-8513-0C44A9A60BF8-4
To: <sip:7800@10.100.72.42:5060>
Call-ID: 23C18A27-B42E-404B-BF7D-AEE1521E4B10-3@10.100.72.42
CSeq: 1 INVITE
Via: SIP/2.0/UDP 10.100.72.42:5060;received=10.100.72.42;branch=z9hG4bKDC64F3EE-94EA-462D-8771-98589516352C-3
Content-Length: 0
Organization: 10.100.6.41
Server: Avaya SIP Enablement Services
18:58:42.122: SipDialog: event CALLING_RESPROV, t=5, s=2, r=5, m=03491f9c
18:58:42.122 SIPCONN(87312): HandleSipDialogEvent(CALLING_RESPROV)
18:58:42.122 SIPCONN(87312): Capabilities 61013f
18:58:42.122 SIPCONN(87312): reliable=0
18:58:42.122 SIPCONN(87312): store remote content
18:58:42.122 SIPCONN(87312): store remote content - trying ignored
18:58:42.122 SIPCONN(87312): Trying Timer for 32000 mlsec started...
18:58:42.122: $-NET:SIP::0:63
18:58:42.137: $+NET:SIP::0:0
18:58:42.137: SIPTR: Received [0,UDP] 493 bytes from 10.100.6.41:5060 <<<<<
SIP/2.0 403 Forbidden
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=1B702C33-D41E-424F-8513-0C44A9A60BF8-4
To: <sip:7800@10.100.72.42:5060>;tag=C88E5D19E9CFE947C69B47B3A41C438F1345611140160114
Call-ID: 23C18A27-B42E-404B-BF7D-AEE1521E4B10-3@10.100.72.42
CSeq: 1 INVITE
Via: SIP/2.0/UDP 10.100.72.42:5060;psrrposn=1;received=10.100.72.42;branch=z9hG4bKDC64F3EE-94EA-462D-8771-98589516352C-3
Content-Length: 0
Organization: 10.100.6.41
Server: Avaya SIP Enablement Services
18:58:42.137: Sending  [0,UDP] 426 bytes to 10.100.6.41:5060 >>>>>
ACK sip:87312@10.100.6.41:5060 SIP/2.0
Via: SIP/2.0/UDP 10.100.72.42:5060;branch=z9hG4bKDC64F3EE-94EA-462D-8771-98589516352C-3
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=1B702C33-D41E-424F-8513-0C44A9A60BF8-4
To: <sip:7800@10.100.72.42:5060>;tag=C88E5D19E9CFE947C69B47B3A41C438F1345611140160114
Call-ID: 23C18A27-B42E-404B-BF7D-AEE1521E4B10-3@10.100.72.42
CSeq: 1 ACK
Max-Forwards: 69
Content-Length: 0
18:58:42.137: SipDialog: event CALLING_RESREJECT, t=5, s=9, r=5, m=03491f9c
18:58:42.137 SIPCONN(87312): HandleSipDialogEvent(CALLING_RESREJECT)
18:58:42.137 SIPCONN(87312): Trying Timer deleted...
18:58:42.137 SIPCONN(87312): ConvertResponse: 403
18:58:42.137 SIPCONN(87312): ConvertResponse: no conversion configured for 403
18:58:42.137 SIPCONN(87312): Failed to obtain Media Server ID
18:58:42.137 SIPCONN(87312): state e:4,p:0,s:6,c:8,rc:403,m:1
18:58:42.137 SIPPARTY(87312): 4 verify update of party-connection state N-F
18:58:42.137 SIPPARTY(87312): 4 update party-connection state N-F
18:58:42.137  -- thisCall by party
18:58:42.137 SetContext: for party 7800.3489f38-348aaa8:1
18:58:42.137 +++ CIFace::Event +++
  +++ Pre-event +++
    Type EventError
    Devices: <7800/7800> <-/-> <-/->
    Calls: 1/00850212e685d001/1.348aaa8/c:2/r:4 0/none
    Parties:	D7800/7800.3489f38-348aaa8:1/l:2/r:2/Queued,RtRequest,Destination
    		none
    		none
    Cause: Busy/3, Info: 231
    Flags: divert=0 hook=0 postCall=0 active=1 moveAll=1 callType=1 hideOtherPi=0 InternalOther=0
  --- Pre-event ---
  +++ Error +++
     -- thisCall by party
18:58:42.137 Trc 36002 Request rejected: error code 231(DN is busy)
@18:58:42.1370 [0] 8.1.000.81 send_to_client: message EventError
	(DN is busy)
	AttributeEventSequenceNumber	000000000000008d
	AttributeTimeinuSecs	137000
	AttributeTimeinSecs	1345636722 (18:58:42)
	AttributeExtensions	[322] 00 0f 00 00..
		'CUSTOMER_ID'	'Resources'
		'AGENT'	'1801'
		'PLACE'	'87312'
		'DN'	'87312'
		'ACCESS'	'87312'
		'SWITCH'	'SIPSwitch'
		'NVQ'	1
		'TARGET'	'POC@statserver.GA'
		'iscc-ar-agent-dn'	'87312'
		'iscc-ar-agent-id'	'1801'
		'iscc-ar-place'	'87312'
		'iscc-ar-duration'	15000
		'iscc-ar-priority'	0
		'iscc-ar-priority-1'	16
		'iscc-ar-priority-2'	625
	AttributeErrorCode	231
	AttributeErrorMessage	'DN is busy'
	AttributeReferenceID	125
	AttributeReason	[14] 00 01 01 00..
		'RTR'	118
	AttributeRouteType	0 (RouteTypeUnknown)
	AttributeOtherDN	'87312'
	AttributeConnID	00850212e685d001
	AttributeThisDN	'7800'
	AttributeClientID	5
18:58:42.137 Int 04545 Interaction message "EventError" sent to 456 ("urs")
Do you have any idea?
Thanks,
Sitto