How to find which trunk a DID range is on? 1

[SurferdudeHB]

I have a remote site with two G450s and will be decommissioning one of them. I need to figure out which gateway the local DID range is using for outbound and inbound traffic.
What is the best way find this information?
Should I contact the carrier and get the DID range circuit assignment and then do a disp trunk xx and hope the circuit ID is displayed under Name?

R016x

 

[SurferdudeHB]

The purpose of this exercise is to consolidate the DIDs into the remaining G450.

 

[joe2938]

do a list trace tac and call a did number, 50/50 chance of getting it on the 1st try

 

[joe2938]

also your ars will tell you which trunk is used for outbound dialing. list ars analysis is the command

 

[dialtonebone]

I would rephrase the question: Which circuit/trunk are the PRIs coming in on?


Inbound
Find out from your carrier where they physically terminate the DIDs (and also if they fail over anywhere else). You can then check out the incoming call handling and see if anything special is being done, then just ask the carrier to port the numbers from old-circuit to other-circuit.

Outbound
"list ars route-chosen loc XX" and follow up on those route patterns (and hopefully they route patterns are all labeled nicely).

 

[joe2938]

a trace would be much quicker also if the did numbers match the extension then most likely yo will not see any entries in the inc table only if you need to manipulate the number

 

[SurferdudeHB]

I will do the list trace, thx but..
Should the carrier or telecom billing person have all the DID range trunk allocation info? When you order a new block of DIDs you usually tell the carrier which trunk you want it on. Correct?

 

[joe2938]

Yes they should have that info, also randycarroll already suggested this to you

 

[SurferdudeHB]

How does the PBX route outbound calls to use a specific outbound route pattern? Via network region? If so, where in ASA can I find this, thx.

For ex. I found trk grp 2 on the remote gateway is using route pattern 222. In route pattern 222 the first trunk is a SIP trk grp. How does the switch force a phone on that remote gateway to use this specific route pattern?

 

[joe2938]

ars tells it to use a route pattern or a partition route pattern which will point to a route pattern

 

[dialtonebone]

Most of this is google'able. Check YouTube training videos on ARS and AAR.
Get familiars with route-patterns,locations,trunk-groups and partition-route-table. Then read up on ip-network-regions and ip-network-maps.

 

[joe2938]

This should get you started