Cortelco 2747 user manual SIP Parameters, Reg From, Reg To, Reg Expire

4.3.1 SIP Parameters

Please see section 3.2 for an explanation of each field.

4.3.2 Forward Mode

Please see section 3.4 for an explanation of each field.

4.3.3Advanced

4.3.3.1Reg From

Modifies the “From:” field in the SIP / SDP messages. This field should be left empty in most cases.

4.3.3.2 Reg To

Modifies the “To:” field in the SIP / SDP messages. This field should be left empty in most cases.

4.3.3.3 Reg Expire

Modifies the “Expires:” field in the SIP/SDP messages. This will control the re-registration period.

4.3.3.4 Min Media Port

The minimum value of the range of the transmitted RTP packet’s port.

4.3.3.5 Max Media Port

The maximum value of the range of the transmitted RTP packet’s port.

4.3.3.6 Codec

The type of codec used to transmit RTP packets. In SIP calls, the type of codec used is determined by the called party.

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