Figure 10-9: Direct Connection (Example) - AudioCodes Mediant 1000 User Manual

SIP User's Manual
For example:
Invite sip:trans123@audiocodes.com SIP/2.0
The left part of the SIP URI includes the TranscodingID (the default string is 'trans') and is
terminated by a unique number (123). The gateway immediately sends a 200 OK message
in response to each INVITE.
Each of the Transcoding SIP call participants can use a different VoIP coder and a different
DTMF transport type, negotiated with the gateway using common SIP negotiation.
Sending a BYE request to the gateway by any of the participants terminates the SIP
session and removes it from the Transcoding session. The second BYE from the second
participant ends the Transcoding session and releases its resources.
The gateway uses two media (DSP) channels for each call, thereby reducing the number of
available Transcoding sessions to half of the defined value for MediaChannels. To limit the
number of resources available for the Transcoding, use the ini file parameter
MediaChannels or Embedded Web Server (refer to 'Configuring the IPmedia Parameters'
on page 175). For example, if MediaChannels = 40, only 20 Transcoding sessions are
available.
The figure below illustrates an example of a direct connection to a gateway:
Version 5.2

Figure 10-9: Direct Connection (Example)

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10. Media Server Capabilities
September 2007