[cisco-voip] Issue with anonymous calls on a SIP trunk

Andy Carse andy.carse at gmail.com
Tue Dec 10 14:07:07 EST 2013


Yes it was taken at the providers end of sip trunk.
 On 10 Dec 2013 18:34, "Brian Meade (brmeade)" <brmeade at cisco.com> wrote:

> Was this capture taken from outside the CUBE?  It looks like you might not
> be using media flow-through on your dial-peers if that media IP address
> isn't getting updated.
>
> Brian
>
> -----Original Message-----
> From: Andy [mailto:andy.carse at gmail.com]
> Sent: Tuesday, December 10, 2013 12:19 PM
> To: Brian Meade (brmeade); Cisco VoIP List
> Subject: Re: [cisco-voip] Issue with anonymous calls on a SIP trunk
>
> Hi Brian,
> I only have a sniffer trace to hand at the moment I've changed the ip
> addressing and the numbers to protect the innocent.
>
> Internet Protocol Version 4, Src: 10.1.1.2 (10.1.1.2), Dst: 10.1.1.1
> (10.1.1.1)
> User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session
> Initiation Protocol
>      Status-Line: SIP/2.0 200 OK
>          Status-Code: 200
>          [Resent Packet: False]
>      Message Header
>          Via: SIP/2.0/UDP 10.1.1.1:5060
> ;branch=z9hG4bKbjrn5f305g111q46j2j1.1
>              Transport: UDP
>              Sent-by Address: 10.1.1.1
>              Sent-by port: 5060
>              Branch: z9hG4bKbjrn5f305g111q46j2j1.1
>          From:
> "Anonymous"<sip:anonymous at 10.1.1.1>;tag=140140856-1386321996272-
>              SIP Display info: "Anonymous"
>              SIP from address: sip:anonymous at 10.1.1.1
>                  SIP from address User Part: anonymous
>                  SIP from address Host Part: 10.1.1.1
>              SIP tag: 140140856-1386321996272-
>          To: "44InboundDDI
> 44InBoundDDI"<sip:44InBoundDDI@"Domain">;tag=585CA458-26EF
>              SIP Display info: "44InboundDDI 44InBoundDDI"
>              SIP to address: sip:44InBoundDDI@"Domain"
>                  SIP to address User Part: 44InBoundDDI
>                  SIP to address Host Part: "Domain"
>              SIP tag: 585CA458-26EF
>          Date: Fri, 06 Dec 2013 09:26:36 GMT
>          Call-ID: BW092636272061213411136895 at 10.81.253.80
>          CSeq: 597521657 INVITE
>          Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER,
> SUBSCRIBE, NOTIFY, INFO, REGISTER
>          Allow-Events: telephone-event
>          Contact: <sip:44InBoundDDI at 10.1.1.2:5060>
>              Contact-URI: sip:44InBoundDDI at 10.1.1.2:5060
>          Supported: replaces
>          Supported: sdp-anat
>          Server: Cisco-SIPGateway/IOS-15.3.2.T1
>          Supported: timer
>          Content-Type: application/sdp
>          Content-Disposition: session;handling=required
>          Content-Length: 246
>      Message Body
>          Session Description Protocol
>              Session Description Protocol Version (v): 0
>              Owner/Creator, Session Id (o): CiscoSystemsSIP-GW-UserAgent
> 9234 6163 IN IP4 10.1.1.2
>                  Owner Username: CiscoSystemsSIP-GW-UserAgent
>                  Session ID: 9234
>                  Session Version: 6163
>                  Owner Network Type: IN
>                  Owner Address Type: IP4
>                  Owner Address: 10.1.1.2
>              Session Name (s): SIP Call
>              Connection Information (c): IN IP4 "CallManager IP Address"
>              Time Description, active time (t): 0 0
>                  Session Start Time: 0
>                  Session Stop Time: 0
>              Media Description, name and address (m): audio 26000 RTP/AVP
> 0 101
>              Connection Information (c): IN IP4 "CallManager IP Address"
>              Media Attribute (a): rtpmap:0 PCMU/8000
>              Media Attribute (a): rtpmap:101 telephone-event/8000
>              Media Attribute (a): fmtp:101 0-15
>              Media Attribute (a): ptime:20
>
> Regards
>
> Andy
>
> On 10/12/2013 14:36, Brian Meade (brmeade) wrote:
> > Andy,
> >
> > Can you copy what the Update message looks like so we can see what
> header the CUCM IP address is in?  You should be able to use a SIP Profile
> on the CUBE to change this to the CUBE's external IP address.
> >
> > Brian
> >
> > -----Original Message-----
> > From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf
> > Of Andy
> > Sent: Tuesday, December 10, 2013 6:32 AM
> > To: Cisco VoIP List
> > Subject: [cisco-voip] Issue with anonymous calls on a SIP trunk
> >
> > Hi,
> > I have an issue with anonymous (callerid witheld) calls on a SIP trunk
> which I can't figure out.
> >
> > Call comes in over sip trunk via a cube to cucm, if the callerid is know
> then the call gets placed to the dialed number ok.
> > But if the number is withheld on the inbound call leg their is an
> additional update message which contains the CUCM ip address, but the SIP
> provider is unable to route to this address so one way voice is the result.
> >
> > Does anyone have any idea how to fix this?
> >
> > --
> > Regards
> >
> > Andy
> >
> > _______________________________________________
> > cisco-voip mailing list
> > cisco-voip at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-voip
> >
>
>
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