[SIPForum-discussion] Diversion Header (INVITE Without SDP)

[Shakil, Rashid]

Hello,

 

While working with SIP carrier I came across to an issue where
particular SIP providers rejecting my calls to a cell phone number. The
call happen to be a redirected call (means inbound call redirected to an
offnet TN). For the redirected call (call to an offnet number) our AS is
sending an INVITE without SDP with diversion headers. My SIP carrier is
saying that the issue is because we are sending two identical diversion
headers and we should only send "1" and the other thing they pointed out
is the "counter=3" in diversion header. They mentioned that the
"counter" should be 1 instead of three. Can anyone please tell me if
sending 2 identical diversions is a problem also what is the
significance of "counter" in diversion header. 

 

INVITE sip:7202730836 at 67.135.78.227:5060 SIP/2.0

Via: SIP/2.0/UDP 78.33.28.55:5060;branch=z9hG4bKut2ins00bo7gqdkee7s0.1

From:
<sip:7034319130 at 78.33.28.55>;tag=9ae82760-1dd1-11b2-a243-b03162323164+a4
c9e520

Contact:
<sip:SDao6c8-u2tgvd144pfmf20a2i22ll3v2pmhvmhvg8rpfgsg4opsvii33es1000010@
78.33.28.55:5060;transport=udp>

To: <sip:2405993731 at 67.15.78.227>

Call-ID: 2563935-1801424197 at 69.22.23.61

CSeq: 2 INVITE

Max-Forwards: 69

Allow: INVITE,BYE,ACK,CANCEL,PRACK,REFER,OPTIONS,REGISTER,NOTIFY

Diversion:
<sip:2405993731 at 69.22.23.65>;reason=no-answer;privacy=off;counter=3

Diversion:
<sip:2405993731 at 69.22.23.65>;reason=no-answer;counter=3;privacy=off

Remote-Party-ID: "7034319130"
<sip:7034319130 at 69.22.23.65>;party=calling;id-type=subscriber;privacy=of
f

P-Asserted-Identity: "7034319130" <sip:7034319130 at x.com>

Content-Length: 0

 

 

RS

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