select T1 channel

Answered Question
Aug 11th, 2008

Hi,

There are 23 B channels in T1 circuit. from the dial-peer config, we can configure the call to T1 level (e.g. 6/0 or 6/1). can we config the call down to B channels level? (e.g. 6/0.12, channel 12 of 6/0)

rdgs

I have this problem too.
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Correct Answer by Marwan ALshawi about 8 years 4 months ago

by the way u can aggrate the pattrento match all of them in one pattren and then send it to that destination

so to match all the destination u posted here

do

[4,6,8][2,4-6]!

for example

dial-peer voice 9 pots

destination-pattren [4,6,8][2,4-6]!

then pot the port pr trunk u want (easy now)

but u gonna see a bit of delay when u dial becuase of inter-digit timeout because there is several possibalities to match or after u finish dialing put # to let the gateway that u finished the numbers but either way will work with one line and one dial peer

good luck

please, rate the helpful post

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Marwan ALshawi Mon, 08/11/2008 - 07:20

Trunk Groups

Trunk groups are used to group multiple voice ports or ISDN channels into a single logical target for an outbound dial peer, reducing the number of peers required. Each trunk group is configured with a "hunting scheme" that determines the order in which channels are selected

Trunk groups apply only to outbound calls. The gateway cannot control channel assignment of incoming calls

this is example from cisco press, cisco voice gateways and gatekeeper

Gateway(config)#trunk group Emergency

Gateway(config-trunk-group)#description B Channels reserved for

Emergency Calls

Gateway(config-trunk-group)#hunt-scheme round-robin

Gateway(config)#trunk group Standard

Gateway(config-trunk-group)#hunt-scheme least-used

!

! Controller config to select channels

!

Gateway(config)#controller t1 2/0

Gateway(config-controller)#framing esf

Gateway(config-controller)#linecode b8zs

Gateway(config-controller)#pri-group timeslots 1-24

Gateway(config-controller)#trunk-group Emergency timeslots 1-2

Gateway(config-controller)#trunk-group Standard timeslots 3-23

!

! Set additional voice ports into standard trunk group

!

Gateway(config)#voice-port 1/0/0

Gateway(config-voice-port)#trunk-group Standard

Gateway(config-voice-port)#interface s1/0:23

Gateway(config-if)#trunk-group standard

!

! Apply trunk groups to dial peers

!

Gateway(config)#dial-peer voice 911 pots

Gateway(config-dial-peer)#destination-pattern 911

Gateway(config-dial-peer)#trunkgroup Emergency 1

Gateway(config-dial-peer)#trunkgroup Standard 2

!

Gateway(config)#dial-peer voice 11 pots

Gateway(config-dial-peer)#destination-pattern 91[29]..[29]......

Gateway(config-dial-peer)#trunkgroup Standard

good luck

Please, if helpful Rate

anitachoi3 Thu, 08/14/2008 - 09:22

Hi,

Very very useful.

One question

Can I group the "dial-peer voice xxx voip" into trunk group? if so, how to configure it.

e.g.

destination-pattern 4405.

destination-pattern 651.

destination-pattern 866.

destination-pattern 62.

etc

They point to the same gateway. I need to create 10 - 20 dial-peers for those destinations.

rdgs

Marwan ALshawi Thu, 08/14/2008 - 15:42

no u cant

creat dial-peer for each

if u need any more details just post here

please, rate the helpful Post

and good luck

Correct Answer
Marwan ALshawi Thu, 08/14/2008 - 16:22

by the way u can aggrate the pattrento match all of them in one pattren and then send it to that destination

so to match all the destination u posted here

do

[4,6,8][2,4-6]!

for example

dial-peer voice 9 pots

destination-pattren [4,6,8][2,4-6]!

then pot the port pr trunk u want (easy now)

but u gonna see a bit of delay when u dial becuase of inter-digit timeout because there is several possibalities to match or after u finish dialing put # to let the gateway that u finished the numbers but either way will work with one line and one dial peer

good luck

please, rate the helpful post

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