[Asterisk-Users] Cisco 79XX - Using built-in 3way conference

[Aaron Johnson]

Matthew Boehm wrote:

>We recently switched to 729. I wouldn't expect that to cause built-in
>conferencing to stop working.
>
>Matthew
>----- Original Message ----- 
>From: "Kevin P. Fleming" <kpfleming at starnetworks.us>
>To: "Asterisk Users Mailing List - Non-Commercial Discussion"
><asterisk-users at lists.digium.com>
>Sent: Wednesday, November 03, 2004 5:28 PM
>Subject: Re: [Asterisk-Users] Cisco 79XX - Using built-in 3way conference
>
>
>  
>
>>Matthew Boehm wrote:
>>
>>    
>>
>>>This works fine if caller 1 and 2 are both other phones in the office or
>>>caller 1 is a phone in office and 2 is PSTN. Just doesn't work when both
>>>PSTN. Worked before..
>>>      
>>>
>>What codecs are involved? If you are using low-bandwidth codecs for PSTN
>>connections, the Cisco phones will refuse to conference two
>>low-bandwidth calls together. They may work with a ulaw and a
>>low-bandwidth call, but I haven't tested that.
>>    
>>
Unfortunately, I would.  I recently ran into a problem with conferencing 
on the 7940 and 7960.  When conferencing using G.711, it works fine.  
However, the phone will not conference using G.729.  I have confirmed 
this with Cisco technical support.