[Asterisk-biz] Two g729 channels ATA

[Smith - BESTCOM GROUP]

Yep. SIPURA does compress with the same codec at the same time on both ports... But those MTAs i was pointing before does the job and I´m starting to use them to ... 

Regards,
----------------------------------
RODRIGO C. SMITH
BESTCOM GROUP
+55.14.3324-2324
+55.11.4688-1736
iVoz# 1001 ou 1005
smith at bestcom.com.br
  ----- Original Message ----- 
  From: AR Tarzi 
  To: Commercial and Business-Oriented Asterisk Discussion 
  Sent: Thursday, January 27, 2005 9:44 AM
  Subject: Re: [Asterisk-biz] Two g729 channels ATA


  Thank you, it seems you are right. Their documents state:
  A codec resource is considered as allocated if it has been included in the SDP codec list of an

  active call, even though it eventually may not be the one chosen for the connection. So, if the G.729a

  codec is enabled and included in the codec list, that resource is tied up until the end of the call

  whether or not the call actually uses G.729a. If the G729a resource is already allocated and since

  only one G.729a resource is allowed per SPA, no other low-bit-rate codec may be allocated for

  subsequent calls; the only choices are G711a and G711u. On the other hand, two G.723.1/G.726 

  resources are available per SPA. Therefore it is important to disable the use of G.729a in order to

  guarantee the support of 2 simultaneous G.723/G.726 codec.

    ----- Original Message ----- 
    From: Hermann Wecke 
    To: Commercial and Business-Oriented Asterisk Discussion 
    Sent: Thursday, January 27, 2005 14:27
    Subject: Re: [Asterisk-biz] Two g729 channels ATA


    AR Tarzi wrote:
    > What is wrong with a sipura ata ? or am I not understanding the request ?

    The last time I checked the white paper for sipura, cisco among many 
    other brands I found that they are only able to handle ONE g729 call. If 
    a second call is made or received, the ATA will fallback to g711. This 
    "feature" is written in very tiny letters somewhere in the paper, but 
    not clearly disclosed in the main ad.

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