Re: [asterisk-users] [OpenSIPS-Users] Dimensioning a telephony system based on openser!

2008-10-29 Thread Alex Balashov
Nuno Marques wrote:

   Every calls should pass through mediaproxy so that i can account them.

You can do accounting without handling media.

-- 
Alex Balashov
Evariste Systems
Web: http://www.evaristesys.com/
Tel: (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599

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Re: [asterisk-users] [OpenSIPS-Users] Dimensioning a telephony system based on openser!

2008-10-29 Thread Nuno Marques
Without mediaproxy? Only based on SIP messages?



2008/10/29 Alex Balashov [EMAIL PROTECTED]

 Nuno Marques wrote:

   Every calls should pass through mediaproxy so that i can account them.


 You can do accounting without handling media.

 --
 Alex Balashov
 Evariste Systems
 Web: http://www.evaristesys.com/
 Tel: (+1) (678) 954-0670
 Direct : (+1) (678) 954-0671
 Mobile : (+1) (706) 338-8599

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Re: [asterisk-users] [OpenSIPS-Users] Dimensioning a telephony system based on openser!

2008-10-29 Thread Alex Balashov
Yes.  There are some liabilities with that in that the signaling 
messages may be incomplete (i.e. you may miss a BYE) and this is the 
usual reason given for doing media proxying for more accurate accounting.

But the latency, bandwidth consumption, and increased complexity and 
cost associated with doing it on a large scale does not justify it, in 
my opinion.  SIP-only accounting is good enough most of the time.

Nuno Marques wrote:

 
 Without mediaproxy? Only based on SIP messages?
 
 
 
 2008/10/29 Alex Balashov [EMAIL PROTECTED] 
 mailto:[EMAIL PROTECTED]
 
 Nuno Marques wrote:
 
  Every calls should pass through mediaproxy so that i can
 account them.
 
 
 You can do accounting without handling media.
 
 -- 
 Alex Balashov
 Evariste Systems
 Web: http://www.evaristesys.com/
 Tel: (+1) (678) 954-0670
 Direct : (+1) (678) 954-0671
 Mobile : (+1) (706) 338-8599
 
 


-- 
Alex Balashov
Evariste Systems
Web: http://www.evaristesys.com/
Tel: (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599

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Re: [asterisk-users] [OpenSIPS-Users] Dimensioning a telephony system based on openser!

2008-10-29 Thread Nuno Marques
Ok... Maybe you're right. I've read somewhere that this service is needed
for taping reasons (policy and other law enforcements). If it's needed whe
can just turn it on for that specific number, right?

But answering to my question, can you point me some ideas refering about
equipment that i should use?

BR

Nuno


2008/10/29 Alex Balashov [EMAIL PROTECTED]

 Yes.  There are some liabilities with that in that the signaling messages
 may be incomplete (i.e. you may miss a BYE) and this is the usual reason
 given for doing media proxying for more accurate accounting.

 But the latency, bandwidth consumption, and increased complexity and cost
 associated with doing it on a large scale does not justify it, in my
 opinion.  SIP-only accounting is good enough most of the time.

 Nuno Marques wrote:


 Without mediaproxy? Only based on SIP messages?



 2008/10/29 Alex Balashov [EMAIL PROTECTED] mailto:
 [EMAIL PROTECTED]

Nuno Marques wrote:

 Every calls should pass through mediaproxy so that i can
account them.


You can do accounting without handling media.

--Alex Balashov
Evariste Systems
Web: http://www.evaristesys.com/
Tel: (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599




 --
 Alex Balashov
 Evariste Systems
 Web: http://www.evaristesys.com/
 Tel: (+1) (678) 954-0670
 Direct : (+1) (678) 954-0671
 Mobile : (+1) (706) 338-8599

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Re: [asterisk-users] [OpenSIPS-Users] Dimensioning a telephony system based on openser!

2008-10-29 Thread Jai Rangi
SIP-only accounting is good enough most of the time.
Does not work in production environment. Specially when you are charging per
second or per minute.
Works only if some one is offering unmetered only service or just doing it
for fun. If it metered service like calling cards, termination or metered
DID etc, then this can be really bad.
My 2 cents.

-Jai
Buy unmetered SIP DID
www.didforsale.com


On Wed, Oct 29, 2008 at 3:56 PM, Alex Balashov [EMAIL PROTECTED]wrote:

 Yes.  There are some liabilities with that in that the signaling
 messages may be incomplete (i.e. you may miss a BYE) and this is the
 usual reason given for doing media proxying for more accurate accounting.

 But the latency, bandwidth consumption, and increased complexity and
 cost associated with doing it on a large scale does not justify it, in
 my opinion.  SIP-only accounting is good enough most of the time.

 Nuno Marques wrote:

 
  Without mediaproxy? Only based on SIP messages?
 
 
 
  2008/10/29 Alex Balashov [EMAIL PROTECTED]
  mailto:[EMAIL PROTECTED]
 
  Nuno Marques wrote:
 
   Every calls should pass through mediaproxy so that i can
  account them.
 
 
  You can do accounting without handling media.
 
  --
  Alex Balashov
  Evariste Systems
  Web: http://www.evaristesys.com/
  Tel: (+1) (678) 954-0670
  Direct : (+1) (678) 954-0671
  Mobile : (+1) (706) 338-8599
 
 


 --
 Alex Balashov
 Evariste Systems
 Web: http://www.evaristesys.com/
 Tel: (+1) (678) 954-0670
 Direct : (+1) (678) 954-0671
 Mobile : (+1) (706) 338-8599

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Re: [asterisk-users] [OpenSIPS-Users] Dimensioning a telephony system based on openser!

2008-10-29 Thread Alex Balashov
Jai Rangi wrote:

 SIP-only accounting is good enough most of the time.

 Does not work in production environment.

Really?   Next time I will consult with your authority on what works and 
does not work in production environments before implementing for 
large-scale billing solutions that are perfectly functional, and indeed, 
very much in production.

By the way, there are, of course mitigating strategies to minimise risk. 
  Dialog-stateful modules can end the dialog after a certain timeout, 
you can send periodic re-invites with an SDP offer to probe the 
endpoints, etc.

It is far wiser than introducing a point of failure, a source of 
latency, and a source of huge bandwidth and processing cost into the 
call path when you don't need it.

-- 
Alex Balashov
Evariste Systems
Web: http://www.evaristesys.com/
Tel: (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599

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Re: [asterisk-users] [OpenSIPS-Users] Dimensioning a telephony system based on openser!

2008-10-29 Thread Jai Rangi
Really?
Yes, Specially when your service is metered, I don't know how some once
justify good enough billing. Dealing with 500 customer calling every day for
billing inquiries can turn out to be much more expensive then all other
expenses.

 Next time I will consult with your authority on what works and
does not work in production environments before implementing for
large-scale billing solutions that are perfectly functional, and indeed,
very much in production.

No Need to be so contemptuous.


On Wed, Oct 29, 2008 at 4:37 PM, Alex Balashov [EMAIL PROTECTED]wrote:

 Jai Rangi wrote:

  SIP-only accounting is good enough most of the time.

  Does not work in production environment.

 Really?   Next time I will consult with your authority on what works and
 does not work in production environments before implementing for
 large-scale billing solutions that are perfectly functional, and indeed,
 very much in production.

 By the way, there are, of course mitigating strategies to minimise risk.
  Dialog-stateful modules can end the dialog after a certain timeout,
 you can send periodic re-invites with an SDP offer to probe the
 endpoints, etc.

 It is far wiser than introducing a point of failure, a source of
 latency, and a source of huge bandwidth and processing cost into the
 call path when you don't need it.

 --
 Alex Balashov
 Evariste Systems
 Web: http://www.evaristesys.com/
 Tel: (+1) (678) 954-0670
 Direct : (+1) (678) 954-0671
 Mobile : (+1) (706) 338-8599

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Re: [asterisk-users] [OpenSIPS-Users] Dimensioning a telephony system based on openser!

2008-10-29 Thread Alex Balashov
By good enough I really did mean good enough, not sort-of kind-of okay.

Jai Rangi wrote:

 Really?  
 Yes, Specially when your service is metered, I don't know how some once 
 justify good enough billing. Dealing with 500 customer calling every day 
 for billing inquiries can turn out to be much more expensive then all 
 other expenses. 
 
  Next time I will consult with your authority on what works and
 does not work in production environments before implementing for
 large-scale billing solutions that are perfectly functional, and indeed,
 very much in production.
 
 No Need to be so contemptuous.
 
 
 On Wed, Oct 29, 2008 at 4:37 PM, Alex Balashov 
 [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote:
 
 Jai Rangi wrote:
 
   SIP-only accounting is good enough most of the time.
 
   Does not work in production environment.
 
 Really?   Next time I will consult with your authority on what works and
 does not work in production environments before implementing for
 large-scale billing solutions that are perfectly functional, and indeed,
 very much in production.
 
 By the way, there are, of course mitigating strategies to minimise risk.
  Dialog-stateful modules can end the dialog after a certain timeout,
 you can send periodic re-invites with an SDP offer to probe the
 endpoints, etc.
 
 It is far wiser than introducing a point of failure, a source of
 latency, and a source of huge bandwidth and processing cost into the
 call path when you don't need it.
 
 --
 Alex Balashov
 Evariste Systems
 Web: http://www.evaristesys.com/
 Tel: (+1) (678) 954-0670
 Direct : (+1) (678) 954-0671
 Mobile : (+1) (706) 338-8599
 
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-- 
Alex Balashov
Evariste Systems
Web: http://www.evaristesys.com/
Tel: (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599

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