Re: [Sip-implementors] in SDP

2014-07-14 Thread sampat patnaik
Hi Nitin, Please find the explanation below which states that the increament is always done by 1 as per RFC. RFC 4566:   5.2.  Origin ("o=")   o=     is a version number for this session description.  Its  usage is up to the creating tool, so long as is   increased

Re: [Sip-implementors] Hostnames vs IP Addresses

2014-07-14 Thread James Cloos
> "PK" == Paul Kyzivat writes: PK> If you give out only URIs with domain names, then that is what PK> clients should be using. PK> Only servers that are "responsible for the domain" are permitted to PK> translate those URIs. Thanks. That is what I expected when I wrote the validation code,

Re: [Sip-implementors] in SDP

2014-07-14 Thread Paul Kyzivat
On 7/14/14 7:06 PM, NK wrote: Hi Paul, Thanks!!. Yes i checked 3264 and it says it should be increment by 1. However i am more concerned that if there is re invite and in 200 OK SDP(in the correspondence of re-invite) there is no change as compare to previous SDP then also should increment by

Re: [Sip-implementors] in SDP

2014-07-14 Thread NK
Hi Paul, Thanks!!. Yes i checked 3264 and it says it should be increment by 1. However i am more concerned that if there is re invite and in 200 OK SDP(in the correspondence of re-invite) there is no change as compare to previous SDP then also should increment by 1? Regards, Nitin Kapoor On M

Re: [Sip-implementors] in SDP

2014-07-14 Thread Paul Kyzivat
On 7/14/14 6:14 PM, NK wrote: Dear All, I have query regarding the Session version in SDP. I know if we are making any changes in SDP then from 183 to 200OK with SDP then there will be increment in session version from 183 to 200 OK . However i have 2 doubt as below. Can you please help me on

[Sip-implementors] in SDP

2014-07-14 Thread NK
Dear All, I have query regarding the Session version in SDP. I know if we are making any changes in SDP then from 183 to 200OK with SDP then there will be increment in session version from 183 to 200 OK . However i have 2 doubt as below. Can you please help me on this. 1) Is that Value should b

Re: [Sip-implementors] Fwd: Multiple 183 w/SDP along with PRACK

2014-07-14 Thread NK
Hi Brett, Thanks a lot for your help!! Regards, Nitin Kapoor On Thu, Jul 10, 2014 at 1:27 PM, Brett Tate wrote: > > is that 2~3 183 w/sdp is valid and call can be processed? > > Yes; it is valid. However, RFC 6337 recommends to not include the SDP. > > Maybe you will find the following snipp

Re: [Sip-implementors] Hostnames vs IP Addresses

2014-07-14 Thread Paul Kyzivat
On 7/13/14 8:46 PM, James Cloos wrote: I've noticed that all of the fraud attempts which come to my advertized SRV destinations use ip addresses for the To and From headers and for the INVITE line. My code to verify that INVITEd addresses are valid expects domain names or hostnames, not ip addre