Logs are
[color=green][font=courier][size=10pt]01:55:38.295: $+NET:SIP::0:0
01:55:38.296: SIPS:LOGBLOCK:BEGIN:SIPMSG:[
01:55:38.296: SIPTR: Received [648,TCP] 865 bytes from 192.168.2.34:41202 <<<<<
INVITE sip:8999@192.168.2.247 SIP/2.0
Via: SIP/2.0/TCP 192.168.2.34:5060;branch=z9hG4bK7f4b0e25;rport
Max-Forwards: 70
From: "3119" <sip:8999@192.168.2.247>;tag=as1d375566
To: <sip:8999@192.168.2.247>
Contact: <sip:8999@192.168.2.34:5060;transport=TCP>
Call-ID: 168c89514e2bfafe7a82966e0b971615@192.168.2.247
CSeq: 102 INVITE
User-Agent: Asterisk PBX 1.6.0.1
Date: Mon, 22 Aug 2016 22:18:51 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 310
v=0
o=root 1975435331 1975435331 IN IP4 192.168.2.34
s=Asterisk PBX 1.6.0.1
c=IN IP4 192.168.2.34
t=0 0
m=audio 18602 RTP/AVP 0 8 3 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv
01:55:38.297: CallMatcher: no call match attributes found
01:55:38.297: call to itself is rejected
01:55:38.298: Sending [648,TCP] 334 bytes to 192.168.2.34:41202 >>>>>
SIP/2.0 403 Forbidden
Via: SIP/2.0/TCP 192.168.2.34:5060;branch=z9hG4bK7f4b0e25;rport;received=192.168.2.34
From: "3119" <sip:8999@192.168.2.247>;tag=as1d375566
To: <sip:8999@192.168.2.247>;tag=303A7051-50FE-446C-8801-CFA78988A5A0-30
Call-ID: 168c89514e2bfafe7a82966e0b971615@192.168.2.247
CSeq: 102 INVITE
Content-Length: 0[/size][/font][/color]
Where [b]8999[/b] is Routing Point that diverts all incoming calls to the Agent Group.