ISDN PRI

antonyice1

Guys,

Today I saw an isdn pri configuration(result of using show run command).

interface Serial1/1:15
no ip address
isdn switch-type primary-net5
isdn incoming-voice voice
no cdp enable

this is a part of the configuration.My doubt is that what is the meaning of the command
"isdn incoming-voice voice" and do we have to include this command for all the isdn pri configurations or is it one among those commands that are auto generated and appears when we give the show run command.

mikej412

isdn incoming-voice

isdn incoming-voice {voice | data [56 | 64] | modem [56 | 64]}

voice - Incoming voice calls bypass the modems and be handled as a voice call.

data - Incoming voice calls bypass the modems and be handled as digital data. If this keyword is selected, you can specify a B-channel bandwidth of either 56 kbps or 64 kbps. If no argument is entered, the default value is 64.

modem - Incoming voice calls are passed over to the digital modems, where they negotiate the appropriate modem connection with the far-end modem. If this keyword is selected, you can specify a B-channel bandwidth of either 56 kbps or 64 kbps. If no argument is entered, the default value is 64.

dtlokee

Just to add to what Mike said, the voice argument basically tells the router to send the incomming calls to the DSPs.