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The IMG 1010 has two DSP chips which provide enough capability to handle all announcements, all call progress tones, and all call setup tones needed to perform our call load performance tests. Each codec uses a different amount of resources from the resource pool in the IMG 1010. Below are a few tables displaying the codecs supported, the profiles supported for each codec, and the amount of resources available for each profile.
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The IP Bearer Profile object is used to define a set of VoIP Parameters to be used in each individual SIP or H.323 Channel Group configured. When configuring the IP Bearer Profile object, ClientView allows the user to configure a list of vocoders/codecs that this channel group will support. These are termed vocoder entries. Attributes such as payload type and size (preferred, minimum, and maximum) are configured in the vocoder entry. When there are multiple vocoder entries configured under the IP Bearer Profile object the IMG will start with the topmost entry and work its way down the list until codec negotiation with the far end gateway is satisfied. The user can set the priority of each vocoder entry by moving the entry up in the list. See IMG 1010 - Changing Vocoder Order in an IP Profile for information on setting the priority. The table below displays on a very high level which codec is supported in either the SIP or H.323 protocol. For more in depth tables that display the codec supported by individual profile, see tables in next section below.
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The next two tables display the number of IP ports or port density per profile for each codec supported on the IMG 1010 and/or IMG 1004. Note that each port can be used to connect with a subsequent port on the TDM leg. For a breakdown of IP to IP Transcoding sessions supported please see the information in the IMG 1010 - Transcoding topic.
Note: The individual profiles (Profile 5, Profile 6, etc) are configured on the IMG by setting either the parameter Host_1010_Flag on the IMG 1010 or the Host_1004_Flag on the IMG 1004. These parameters are located in the dhcpd.conf file in /etc. See IMG 1010 - Setting Host Flags link for more information on configuring IMG for a specific profile.
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