ARS or VPN Overflow

[tjm0852]

So I have ABC-F trunk group using DPT1's connected to Audicodes Gateway that is connected to MS Lync Server.

We use a routing number prefix to seize a trunk channel connected to the gateway. Digit manipulation is done in the Audiocodes.

I was wondering what type of configuration I should use to overflow calls in the event ABC-F trunks are saturated or out of service? I would like to be able to overflow calls to the SIP trunk I have connected to MS Lync server.

At first I was thinking ARS, but VPN overflow seems like the appropriate solution. Any advice?

Thanks

[tjm0852]

OK, so I got it to work using ARS.

My question now is how do I configure so I can add in area code and prefix based on the dialing string.

For example I can add 944 577 to any digits dialed when a call is overflowed via ARS. However I would like to selectively add different exchanges based on the first 2 digits dialed. I am sure it is possible but I am not sure where to do this manipulation.

Again, any help would be greatly appreciated.

Thanks

[vad]

Not exactly understand your question - you want to add some digits in the begining?
f.e. user dial ARS+10XXXXXX and PBX dial 944 577 10XXXXXX?
user dial ARS+20XXXXXX and PBX dial 111 222 20XXXXXX?

discriminator rules:
10 - ARS list 10
20 - ARS list 20

In ARS list 10/route 1 - Digits To Add 944 577
In ARS list 20/route 1 - Digits To Add 111 222

[tjm0852]

Here is my example

User dials 6 (ARS seizure) 38504 (extension)
First choice ARS = Private TG, send 5 digits 38504
Second choice ARS = PSTN PRI, remove 3 add 1 944 577. Number sent to PSTN would be 1944 577 8504

This is working however, I would like analyze digits dialed and add different area code and prefix based on string user dials.

User dials 6 22400
First choice ARS = Private TG, send 5 digits 22400
Second choice ARS = PSTN PRI, remove 2 add 1 994 992. Number sent to PSTN would be 1 994 992 2400

I was thinking that a Numbering Command Table would be used here, but it sounds like I can create additional ARS route and route lists as you described.

Any additional input would be appreciated.

Thanks

[murraya]

yes the quickest way would be for the 6 ars prefix send to a numbering discriminator and in there choose different ars routes for digit ranges. each ars rout you can set to delete and insert based on PSTN number.

[vad]

For your example^
User dials 6 (ARS seizure) 38504 (extension)
First choice ARS = Private TG, send 5 digits 38504
Second choice ARS = PSTN PRI, remove 3 add 1 944 577. Number sent to PSTN would be 1944 577 8504
User dials 6 22400
First choice ARS = Private TG, send 5 digits 22400
Second choice ARS = PSTN PRI, remove 2 add 1 994 992. Number sent to PSTN would be 1 994 992 2400


In discriminator rules (f.e.) call number 38 - ARS list 38, call number 22 - ARS list 22.

ARS list 38
route 1 - private TG
route 2 - PSTN PRI, delete 1, digits to add 1 944 577

ARS list 22
route 1 - private TG
route 2 - PSTN PRI, delete 1, digits to add 1 994 992

[tjm0852]

Thanks Vad and murraya, I got it!

Needed an individual ARS route list for each possible dialing string. The numbering discriminator refers to a possible route list. The route list is where I was able to do the digit manipulation.

I only needed to create 37 ARS route lists with 3 ARS routes and 3 Time-based route lists for each route and 37 discriminator rules to reference the appropriate route to get it to work.

The complexitiy of our dialing plan stinks. Having consectutive extensions in 2 difference exchanges sucks.

Thanks again. I can post the full configuration if it is helpful to anyone.

[vad]

If you have ARS list with 3 ARS route - usually you need ONE time-based route list WITH 3 routes (if you create 3 time-based route lists - will used only 1st one).
when you create time-based route list - add in ONE time-based route list route 1, 2 and 3.
More then one time-based route list used - when you use schedule - f.e. you want during night use route 1, 2 and 3, but during day - use route 3, 2.

And next one - not forget to declare in ARS route quality Speech and FAX. (If not declare FAX - can be some problem with transit calls - when in SETUP message will be present IE:[04] BEARER_CAPABILITY (l=3) 90 90 a3 )

[tjm0852]

Vad,
I have ie: ARS List 111 which has 3 routes, 1, 2 & 3

For Time Based Route 111 I have routes 1, 2 & 3. Your saying routes 2 & 3 would only be needed if I wanted to allow or restrict calling at particular times of the day? I thought I need a time base per route, not just 1 per list. If that is the case it will make it easier to configure the other 5 nodes I am working on.

Regarding route quality, I do not ever remember adding anything other than speech to the quality parameter, but I will go back and do so. You suggest this be done even if fax calls will never be made on these routes?

Thanks again

[vad]

About time-based route list.
F.e. we have ARS list with 3 routes (1,2,3). Usual error - when people create 3 time-based route lists (1st with route 1, 2nd time-based route list with route 2, 3d with route 3) - instead off only 1 time-based route list with 3 routes (f.e. in order 1,2 and 3).