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connection

Configuring Voice over IP for Cisco MC3810 Series Concentrators 39

connection

To specify a connection mode for a voice port, use the connection voice-port conﬁguration

command. Use the no form of this command to disable the selected connection mode.

connection {plar | tie-line | plar-opx} digits | {trunk digits [answer-mode]}

no connection {plar | tie-line | plar-opx} digits | {trunk digits [answer-mode]}

Syntax Description

Defaults

No connection mode is speciﬁed.

Command Mode

Voice-port conﬁguration

Command History

plar

Speciﬁes a private line auto ring down (PLAR) connection. PLAR is handled by

associating a peer directly with an interface; when an interface goes off-hook, the peer

is used to set up the second call leg and conference them together without the caller

having to dial any digits.

tie-line

Speciﬁes a tie-line connection to a private branch exchange (PBX).

plar-opx

Speciﬁes a PLAR Off-Premises eXtension connection. Using this option, the local

voice-port provides a local response before the remote voice-port receives an answer.

On FXO interfaces, the voice-port will not answer until the remote side answers.

digits

The destination telephone number. Valid entries are any series of digits that specify the

E.164 telephone number.

trunk

Speciﬁes a straight tie-line connection to a private branch exchange (PBX).

answer-mode

(Optional; used only with the trunk keyword.) Speciﬁes that the router should not

attempt to initiate a trunk connection, but should wait for an incoming call before

establishing the trunk.

Release Modiﬁcation

11.3(1)T This command was ﬁrst introduced.

11.3(1)MA1 This command was ﬁrst supported on the Cisco MC3810, and the

tie-line keyword was ﬁrst made available on the Cisco MC3810.

11.3(1)MA5 and 12.0(2)T The plar-opx keyword was ﬁrst made available on the Cisco MC3810

as the plar-opx-ringrelay keyword. The keyword was shortened in a

subsequent release.

12.0(3)XG and 12.0(4)T The trunk keyword was made available on the Cisco MC3810.

The trunk answer-mode option was added.

12.0(7)XK This command options were uniﬁed across the Cisco 2600, 3600, and

MC3810 platforms.

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Cisco MC3810 Guía de instalación Pagina 39

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