0x01DB Connection Mode

Use this TLV to set the connection mode. A line can be connected to receive only, transmit only, or both.
Used in:
Resource Attribute Configure message
Resource Attribute Query message

Byte

Description

0, 1

Tag Connection Mode (0x01DB)

2, 3

Length 0x0001

4

Value[0]

0x00 Two-way connection

0x01 One-way listen/receive only

0x02 One-way talk/transmit only

0x03 Hold connection. No voice is
transmitted or received.

0xFF (Default)
You see this value only if you query the
default settings of a VoIP module or when the
call is not connected.