Cisco Systems VC-825 appendix Command, VC-840

Cisco Hoot and Holler over IP

Configuration Tasks

	Command	Purpose
Step 9	Router(config-voice-port)# operation {2-wire 4-wire}	Specifies the cabling scheme for E&M ports. The
		2-wirekeyword is the default.
		(Choose 4-wireoperation for the hoot and holler
		application.)
Step 10
	Router(config-voice-port)# type {1 2 3 5}	Selects the appropriate E&M interface type
		(depending on the end connection—such as PBX):
		• Type 1 indicates the following lead
		configuration (default—this is the
		recommended option):
		– E—Output, relay to ground
		– M—Input, referenced to ground
		• Type 2 indicates the following lead
		configuration:
		– E—Output, relay to SG
		– M—Input, referenced to ground
		– SB—Feed for M, connected to -48V
		– SG—Return for E, galvanically isolated
			from ground
		• Type 3 indicates the following lead
		configuration:
		– E—Output, relay to ground
		– M—Input, referenced to ground
		–	SB—Connected to -48V
		–	SG—Connected to ground
		• Type 5 indicates the following lead
		configuration:
		– E—Output, relay to ground
		–	M—Input, referenced to -48V
Step 11
	Router(config-voice-port)# signal {wink-start	Configures the signaling type for E&M voice ports.
	immediate delay-dial}	The default is wink-start. Select immediate for
		the Cisco hoot and holler over IP application. In the
		immediate-start protocol, the originating side does
		not wait for a wink before sending addressing
		information. After receiving addressing digits, the
		terminating side then goes off-hook for the duration
		of the call. The originating endpoint maintains
		off-hook for the duration of the call.
Step 12
	Router(config-voice-port)# voice-port	Selects another voice port.
	{slot-number/subunit-number/port}
	{slot/port:ds0-group-no}

Step 13 Router(config-voice-port)# voice-class permanent tag

Uses the voice class tag for the receive-only port.

Cisco IOS Voice, Video, and Fax Configuration Guide

VC-840