Cisco CallManager Express and Cisco CallManager 3.3
I work for a company that currently has Cisco CallManager 3.3 (Windows) installed. We are using the Cisco Softphone through our vpn and it can sound bad at times due to the lack of quality of service on our VPN. Was wondering if we can place a CME on the external DMZ of our network and Via SIP for our external sales people working from homes route their calls to and from our CallManager 3.3 to the CME.
Re: Cisco CallManager Express and Cisco CallManager 3.3
The bad quality is not caused by lack of QoS on the VPN, but by the voice traffic traversing the public internet. Registering the phone to a CME will not change the transport path as it still needs to go via the internet where no QoS control can be accomplished. Also, if you place the CME on DMZ then you exploit your system to security risks as well. Just some thoughts.
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