[Asterisk-biz] Two g729 channels ATA

[AR Tarzi]

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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