[Sip-implementors] sending Originating Charge Area as part of SIP message

Hello Experts, I want to send Originating Charge Area as part of SIP INVITE. How can we achieve this in SIP? Thanks Harshith ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-impl

[Sip-implementors] Whats the motive behind implementing Resource Priority Header(RHP) and DSCP in SIP Signaling

Hello Experts Can anyone help me here I am going through this RFC, RFC3487, Requirements for Resource Priority Mechanisms for the Session Initiation Protocol (SIP). This RFC talks about RPH headers to be used in SIP Signaling Messages. This RFC also talks about Differentiated Services (DSCP) .

[Sip-implementors] Does RFC3261 support Multiple PAI or PPI headers in INVITE request

Hello Experts, I wanted to know if Multiple PAI or PPI headers be supported in INVITE request message? If yes, what are the conditions where in which PAI or PPI can be selected out of a set of PAI or PPI headers present, either by softswitch or the User Agent

[Sip-implementors] Receiving 481 Call Leg Transaction does not exists for INVITE with Reliable Provisioning

Hello, I am attempting a call where I am expecting PRACK after INVITE. But once I receive PRACK, I am getting a 481 Call Leg Transaction does not exists I have attached the Logs, Can anyone tell me what am i missing in the SIP scripts I am using sipp tool to run the call Traces Thanks

[Sip-implementors] Tel URI support in Contact Header

Can TEL uri format be used/supported in SIP Contact Header? What scenarios can we support TEL URI in contact Header ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

[Sip-implementors] Calculating SIP PDU Size

Hi, Is there a way to calculate a SIP PDU Message Size? In wireshark, I am able to see total Bytes sent over the wire and I can only see the Content-Length of a SDP message in Application layer How do i calculate the PDU for SIP for a INVITE message like this? INVITE sip:C1@122.166.57.88:

Re: [Sip-implementors] How is a VIA added as either a IPV4 address or IP6 Address by a Proxy/B2BUA

If the B2BUA is supporting both IPV4 or IPV6 address, which IP does the B2BUA place, its IPV4 or IPV6 address? From: Iñaki Baz Castillo Sent: Friday, November 27, 2015 6:04 PM To: Harshith Mulky Cc: sip-implementors@lists.cs.columbia.edu Subject: Re

[Sip-implementors] How is a VIA added as either a IPV4 address or IP6 Address by a Proxy/B2BUA

How does a B2BUA/Proxy know which IP Preference(IP4/IP6) need to be added in VIA when reaching a Server(UAS) listening on 1. IP4 Address 2. IP6 Address SIP/2.0/UDP 10.27.34.34:5060;branch=z9hG4bK00B0002057ecf161fdf or SIP/2.0/UDP [fd00:10:4430:6200::43]:5060;branch=z9hG4bK00B00067694fa6677a

[Sip-implementors] Need of From/To Tag in SIP Dialog

We all know a SIP dialog is complete when it comprises of Call-ID, From Tag and the To Tag. Why do we have 3 different things to complete a Dialog when we could only have Call-ID to complete a Dialog ___ Sip-i

[Sip-implementors] Difference between a SIP 401 and SIP 407 Responses

What is the difference between a SIP 401 Unauthorized and SIP 407 Proxy Authentication Required? I assumed SIP 401 is for REGISTER messages and SIP 407 was for INVITE message challenging Am i correct? Thanks Harshith __