The Call-ID header in a SIP packet contains the hostname or IP address of the calling entity. In NAT mode, this identifying information is replaced by a public IP address and port number. This is a SIP requirement, and the default behavior of the J-series device. If your implementation of SIP includes proprietary packet headers that you want to reveal, you can use the disable call ID hiding feature to disable this function and enable those call flows. This behavior does not conform to the SIP standard.
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Before You Begin |
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For background information, read |
To disable SIP call hiding, use either the J-Web or the CLI configuration editor.
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