SIP Header Indicates Multimedia Call
The H.223 and H.245 protocols are used between multimedia endpoints over a circuit switched network. These protocols are utilized after a call is connected between two endpoints indicating the call is a multimedia call. The IMG 2020 can detect an incoming SS7/ISDN multimedia call based on a specific octet contained in the SS7/ISDN SETUP message. If the call is considered an audio call, the message will be interworked as a normal ISDN/SS7 to SIP call. If however, the call is considered a multimedia call, a proprietary SIP Header can be added indicating it is a multimedia call and the added header will be interworked to the SIP side. The feature is enabled through a new header added to the SIP Headers object. Refer to the information below.
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Right click on dialogic object and select New External Network Elements. No configuration is needed here. The External Network Element object is a container object and no configuration is required. Refer to External Network Elements topic for information on this object.
Right click on the External Network Elements object and select New External Gateways. Again, the external gateway object is a container or parent object and no configuration is required here. Refer to External Gateways object for more information.
Right click on External Gateways object and select New External Gateway. Enter a name that describes the gateway being created. In this procedure, the name Multimedia_GW was entered.
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