for provider 1


INVITE sip:8615883555343@phone.plivo.com:5060 SIP/2.0
Via: SIP/2.0/UDP 103.21.168.42:5060;branch=z9hG4bK48e585ca;rport
Max-Forwards: 70
From: "8613161226065" <sip:VoipCallAmeyo170725134327@phone.plivo.com>;tag=as6a1ce0eb
To: <sip:8615883555343@phone.plivo.com:5060>
Contact: <sip:VoipCallAmeyo170725134327@103.21.168.42>
Call-ID: 40eac1e45f2869876d8189bf04c177f7@phone.plivo.com
CSeq: 102 INVITE ////////////////////////--------------------------------------//////////////////////
User-Agent: Asterisk PBX 1.6.2
Date: Wed, 17 Jan 2018 11:51:57 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 180079596 180079596 IN IP4 103.21.168.42
s=Asterisk PBX 1.6.2
c=IN IP4 103.21.168.42
t=0 0
m=audio 28496 RTP/AVP 8 0 101
a=rtpmap:8 PCMA/8000

INVITE sip:8615883555343@phone.plivo.com:5060 SIP/2.0
Via: SIP/2.0/UDP 103.21.168.42:5060;branch=z9hG4bK48e585ca;rport
Max-Forwards: 70
From: "8613161226065" <sip:VoipCallAmeyo170725134327@phone.plivo.com>;tag=as6a1ce0eb
To: <sip:8615883555343@phone.plivo.com:5060>
Contact: <sip:VoipCallAmeyo170725134327@103.21.168.42>
Call-ID: 40eac1e45f2869876d8189bf04c177f7@phone.plivo.com
CSeq: 102 INVITE
User-Agent: Asterisk PBX 1.6.2
Date: Wed, 17 Jan 2018 11:51:57 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 180079596 180079596 IN IP4 103.21.168.42
s=Asterisk PBX 1.6.2
c=IN IP4 103.21.168.42
t=0 0
m=audio 28496 RTP/AVP 8 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv