[Sip-implementors] requirement to play media stream while on hold?

2020-02-19 Thread Paul Heitkemper
If you are placed on hold (a=sendonly), and the holder sends you a media 
stream, are you required to play it? I looked through RFC's 3261, 2327, and 
3264, but I don't really see a requirement to actually play a media stream 
ever- when on hold or not.


--
Paul Heitkemper
Software Engineer
[AI]
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Re: [Sip-implementors] RTP with wrong payload

2018-11-14 Thread Paul Heitkemper
 

RFC 3550 Section 5.1 

" A receiver MUST ignore packets with payload types that it does not
understand." 

-- 

Paul 

On 2018-11-14 01:30, Sundbaum Per-Johan (Telenor Sverige AB) wrote: 

> Thanks !
> Ok, but to be more specific, are there any general recommendations on 
> question like: Should the PBX drop the packets with wrong payload and let the 
> call/session continue or should the PBX also drop the entire call ?
> BR/pj
> 
> -Original Message-
> From: Dale R. Worley [mailto:wor...@ariadne.com] 
> Sent: den 14 november 2018 05:25
> To: Sundbaum Per-Johan (Telenor Sverige AB)
> Cc: sip-implementors@lists.cs.columbia.edu
> Subject: Re: [Sip-implementors] RTP with wrong payload
> 
> "Sundbaum Per-Johan (Telenor Sverige AB)"
>  writes:
> 
>> Can someone help me getting a link to information regarding how a PBX should 
>> handle the case when for example the codec G.711A is agreed upon, but 
>> somehow there are a couple of G.722 packets received that have the same 
>> ports on UDP level, but clearly belongs to another RTP stream when you look 
>> at sequence numbers, timestamps and SSRC ?
> 
> There's no real definition of "clearly belongs to". If a packet arrives at a 
> port, it is processed according to the usage that has been negotiated for 
> that port.
> 
> Dale
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Links:
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[Sip-implementors] sip trunking question

2015-07-22 Thread Paul Heitkemper
I hope this is apropos for this listserv. Is there a good source somewhere
which describes (with examples) the messaging inherent in making a trunk?
What does it mean to be a trunk?

 

Thanks,

Paul

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[Sip-implementors] ***SPAM*** trunk information needed

2015-07-09 Thread Paul Heitkemper
I'm having trouble understanding how a trunk operates at the messaging
level. Can someone please point me to some information that could help me?

 

Thanks,

Paul

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[Sip-implementors] send audio to multicast address?

2015-04-17 Thread Paul Heitkemper
Can I send SDP to a phone to request it to send audio to a multicast Group,
as opposed to the UAC in the Contact URL? Does anyone have any idea of how
widely-implemented this is in the industry?

 

Thanks,

Paul

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