IP Telephony and Phones

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Hi, I have some outside IP phones behind a pix 501, one phone per pix. These users can make a conference call but the problem is that the people on the other side of the phone can't hear them. Also the phone displays CM down, features disabled. I ...

I need to migrate of unity express to unity based on server. I would like to validate if unity based on server supports the dial by name and if he supports it I would like that they indicate me like to form it

cvicentep by Level 1
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I understand that CME only supports 3-way conferencing. Where is the conferencing actually performed? I have a 2801 with a PVDM2-8 and have configured 8 channels on a fractional PRI. I do not have any spare DSP resources available on the router an...

mbell by Level 1
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1. what is the difference between cisco call manager and call manager express?2. Waht is the difference between Cisco unified call manager and call manager?3. what is the cisco unified call manager express?thanks for your kindly reply... I know these...