[Nov 21 11:52:04] VERBOSE[21446][C-00000005] app_dial.c:     -- Called SIP/Indosat/082272457217
[Nov 21 11:52:04] VERBOSE[1500] chan_sip.c:
<--- SIP read from UDP:10.31.254.115:5060 --->
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.19.175.74:5060;branch=z9hG4bK3557a4d9;rport=5060
Call-ID: 0d842e725d70f6613eee3dd2735968f9@ims.indosat.com
From: <sip:+624316002000@ims.indosat.com>;tag=as139bb801
To: <sip:082272457217@ims.indosat.com>
CSeq: 102 INVITE
Content-Length: 0
<--- SIP read from UDP:10.31.254.115:5060 --->
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 10.19.175.74:5060;branch=z9hG4bK3557a4d9;rport=5060
Call-ID: 0d842e725d70f6613eee3dd2735968f9@ims.indosat.com
From: <sip:+624316002000@ims.indosat.com>;tag=as139bb801
To: <sip:082272457217@ims.indosat.com>;tag=e6dcfve6
CSeq: 102 INVITE
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,PRACK,NOTIFY,MESSAGE,REFER
Contact: <sip:10.31.254.115:5060;Dpt=75c8-400;Hpt=nw_b5_5dd66c54_217177d_ex_8ed2_16;CxtId=3;TRC=ffffffff-ffffffff>
P-Charging-Vector: icid-value="6ca197043372ac776d2be0801240d570.3783297124.1736086.9";orig-ioi=sbyscscf01.ims.indosat.com
P-Early-Media: gated
Content-Length: 244
Content-Type: application/sdp

v=0
o=- 4680075 4680075 IN IP4 10.31.255.111
s=SBC call
c=IN IP4 10.31.255.111
t=0 0
a=sendrecv
m=audio 49572 RTP/AVP 8 101
c=IN IP4 10.31.255.111
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=maxptime:40
<------------->
<--- SIP read from UDP:10.31.254.115:5060 --->
SIP/2.0 503 Service Unavailable
Via: SIP/2.0/UDP 10.19.175.74:5060;branch=z9hG4bK3557a4d9;rport=5060
Call-ID: 0d842e725d70f6613eee3dd2735968f9@ims.indosat.com
From: <sip:+624316002000@ims.indosat.com>;tag=as139bb801
To: <sip:082272457217@ims.indosat.com>;tag=e6dcfve6
CSeq: 102 INVITE
Warning: 399 MSX_SIPCOM "0 RELEASE FROM CC! ExternalRel:1, PeerType:278, Call State:7, Reason:254"
Reason: Q.850;cause=127;text="Interworking, unspecified",SIP;cause=500
P-Charging-Vector: icid-value="6ca197043372ac776d2be0801240d570.3783297124.1736086.9";orig-ioi=sbyscscf01.ims.indosat.com
Content-Length: 0

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