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If any of the three clients are using client or server media mode (see DMCC station registration modes), you must administer the network region for that extension.
If there is only one client application registered in telecommuter mode, or none of the client applications require media for this extension, you do not have to administer a codec set for that extension.
Setting up a network region requires some network planning. For a list of documents that contain information to assist you in planning see Communication Manager administration for DMCC - network regions.
You must set up DMCC softphones in an IP network region that supports the set of Audio Codecs that your application supports. For example, the IP network region must support one of the following codec sets:
G.711A
G.711MU
G.729
G.729A
G.723
G.726A
Applications can specify preferences for both the Audio Codec and the Media Encryption options that they use. The Audio Codec settings and Media Encryption settings that you administer in Communication Manager must be consistent with what your application supports
If your application supports media encryption, administer the Media Encryption setting on the IP Codec Set form with aes as the first preference and none as the second preference or srtp as the first preference, aes as the second preference, and none as the third preference.
If your application does not support media encryption, administer the Media Encryption setting on the IP Codec Set form as none.
Additionally, there must be a media gateway or a media processor resource in the same network region or in an interconnected network region. Otherwise, there will be problems with the talkpath.
![]() | Note |
Using media encryption in server media mode can reduce capacity by 15%. Using media encryption in client media mode or no media mode will not impact server capacity. |