[Freeswitch-users] 180 with SDP converted to 183

[Volodymyr Fedorov]

Hi community!
I have simple question on B - leg I`m getting 180 with SDP:

SIP/2.0 180 Ringing
Via: SIP/2.0/UDP
77.120.xxx.xxx;received=77.120.xxx.xxx;branch=z9hG4bKQQD0rvjpZecrB;rport=5060
From: "380XX555555" <sip:380XX555555 at 77.120.xxx.xxx>;tag=ym07v0XXr79ZQ
To: <sip:0XX444444 at 62.221.xxx.xxx>;tag=d68e8a0
Call-ID: 5913dfbf-dbf1-1234-cfb6-002590773bfa
CSeq: 95208960 INVITE
Server: VegaTelecom
Supported: timer,100rel
Contact: <sip:0XX444444 at 62.221.xxx.xxx
:5060;vtservice=b2buaservlet.siptosip;transport=udp>
Content-Type: application/sdp
Content-Length: 284

v=0
o=MG4000|2.0 323258 331209 IN IP4 62.221.xxx.xxx
s=-
c=IN IP4 62.221.xxx.xxx
t=0 0
m=audio 48910 RTP/AVP 8 101
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=X-vrzcap:vbd Ver=0 Mode=FaxPr ModemRtpRed=0
a=X-vrzcap:identification bin=DSR2879 Prot=mgcp App=MG

which is converted to the 183:

2016/08/13 15:07:29.954212 77.120.xxx.xxx:5060 -> 10.10.16.127:5060
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 10.10.16.127;branch=z9hG4bKnjrrsr6jgI3hgw5UEO6x
From: <sip:85000 at cc.out.co.com:5060>;tag=AwpvzqA
To: <sip:0XX444444 at 77.120.xxx.xxx:5060>;tag=XB7eU5ctUyKDc
Call-ID: fd0e5ed58368eb3abfe6ac75f500eb8d at 10.10.16.127
CSeq: 1 INVITE
Contact: <sip:0XX444444 at 77.120.xxx.xxx:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.4.26-37~64bit
Accept: application/sdp
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER,
REFER, NOTIFY
Supported: timer, path, replaces
Allow-Events: talk, hold, conference, refer
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 243
Remote-Party-ID: "0XX444444" <sip:0XX444444 at 77.120.xxx.xxx
>;party=calling;privacy=off;screen=no

v=0
o=FreeSWITCH 1471072637 1471072638 IN IP4 77.120.xxx.xxx
s=FreeSWITCH
c=IN IP4 77.120.xxx.xxx
t=0 0
m=audio 17412 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20


So question is: Are there any possibility to keep 180 with SDP or it will
be always converted to 183 ?
Thank you in advance.


-- 
Best regards,
Volodymyr
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