Specifications

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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for SCCP (version 3.0)
OL-4652-01
Chapter 5 Parameters and Defaults
Operational Parameters
Value Type
Bitmap
Default
0x00019e60
Voice Configuration Menu Access Code
316
Polarity
Description
You can control line polarity of the Cisco ATA FXS ports when a call is connected or disconnected by
configuring the Polarity bitmap parameter as follows:
• Bit 0: CALLER_CONNECT_POLARITY. Polarity to use when the Cisco ATA is the caller and the
call is connected.
– 0 =Use forward polarity (Default)
– 1 =Use reverse polarity
• Bit 1: CALLER_DISCONNECT_POLARITY. Polarity to use when the Cisco ATA is the caller and
the call is disconnected.
– 0 =Use forward polarity (Default)
– 1 =Use reverse polarity
• Bit 2: CALLEE_CONNECT_POLARITY. Polarity to use when the Cisco ATA is the callee and the
call is connected.
– 0 =Use forward polarity (Default)
– 1 =Use reverse polarity
• Bit 3: CALLEE_DISCONNECT_POLARITY. Polarity to use when the Cisco ATA is the callee and
the call is disconnected.
– 0 =Use forward polarity (Default)
– 1 =Use reverse polarity
Note Bits 4-31 are reserved.
Value Type
Bitmap
Default
0x00000000
Voice Configuration Menu Access Code
304