friend friend wrote:
> Dear somesh,
>         In hold condition, i set the media ip address as 0 and i set the 
> attribute as send only.
> is this enough? am not setting the port as 0.
>  
> and could you please tell me, when shall i use Inactive and send only
>  
> please advice me.

please read draft-ietf-sipping-sip-offeranswer-10 for a long discussion 
on this topic.

        Thanks,
        Paul

> Thanks & Regards,
>  vijay
> 
> --- On Fri, 3/7/09, Shanbhag, Somesh (NSN - IN/Bangalore) 
> <somesh.shanb...@nsn.com> wrote:
> 
> 
> From: Shanbhag, Somesh (NSN - IN/Bangalore) <somesh.shanb...@nsn.com>
> Subject: RE: [Sip-implementors] Doubt in RTP(Media port)
> To: "ext friend friend" <sip_qu...@yahoo.co.in>, 
> sip-implementors@lists.cs.columbia.edu, shamik.s...@wipro.com
> Date: Friday, 3 July, 2009, 7:06 PM
> 
> 
> Vijay:
> 
> There is also one more implementation widely used. If you make your port as 
> 0, this will also result in an Hold condition.
> 
> There are two approaches used:
> 
> (1) Make port as zero
> (2) Include a=sendonly attribute
> 
> 
> Somesh
> 
> -----Original Message-----
> From: sip-implementors-boun...@lists.cs.columbia.edu 
> [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of ext 
> friend friend
> Sent: Friday, July 03, 2009 5:48 PM
> To: sip-implementors@lists.cs.columbia.edu; shamik.s...@wipro.com
> Subject: Re: [Sip-implementors] Doubt in RTP(Media port)
> 
> Thanks for your Information
>  
> Regards,
> vijay
> 
> --- On Fri, 3/7/09, shamik.s...@wipro.com <shamik.s...@wipro.com> wrote:
> 
> 
> From: shamik.s...@wipro.com <shamik.s...@wipro.com>
> Subject: Re: [Sip-implementors] Doubt in RTP(Media port)
> To: sip_qu...@yahoo.co.in, sip-implementors@lists.cs.columbia.edu
> Date: Friday, 3 July, 2009, 5:05 PM
> 
> 
> 
> 
> During call hold just change the attribute to inactive don't change the media 
> port. 
> 
> 
> Thanks and regards,
> 
> Shamik Saha
> Project Engineer
> Voice Protocols
> Cell :  +91-9886704155
> 
> -----Original Message-----
> From: sip-implementors-boun...@lists.cs.columbia.edu 
> [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of 
> sip_qu...@yahoo.co.in
> Sent: Friday, July 03, 2009 5:02 PM
> To: sip fourm
> Subject: [Sip-implementors] Doubt in RTP(Media port)
> 
> 
> Dear Experts,
>         Caller sends INVITE with media port as 1000 to callee. ie caller says 
> to the callee, am listening in 1000. callee sends 200 OK with media port as 
> 2000. ie callee set the caller's ip and port(1000) and it says am listening 
> in 2000. after getting ACK, both ways RTP is going successfully. 
>  
> now when doing call onhold, media port shold be incremented to 1002 or same 
> 1000?
>  
> please tell me the standard.
>  
>  
> Thanks n Advance
>  
> Thanks & Regards,
> vijay
>  
>  
>  
>  
> 
> 
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