Thanks for your reply. The pimg would require digital lines coming off the rolm correct? Im looking at 800 users so 2 or more of the PIMG units and 16 to 24 lines correct?

Yes it is using qsig with the T1

So when you say T1 SIP Gateway are you talking about the TIMG? Does cisco even sell this anymore becasue It is not on the configurator tool at all. Thanks for your help. I have never done an integration using PIMG only the dialogic cards.

Yes, the PIMG would use multiple digital station lines from the Rolm. Again, this is the route I would recommend.

Yes, TIMG is an example of a T1 SIP gateway. Cisco IOS routers can also act as a gateway between qsig and SIP. I'm sure there are lots of others out there too but I have a slight bias toward Cisco. ;) However, there has not yet been any formal testing of Unity talking SIP directly to any qsig gateway (Cisco, Dialogic or otherwise). The closest i've seen in the field is hiding Unity behind a CCM or CME. For example, many of the qsig interop app notes for CCM and CME include results with Unity in the topology...

http://www.cisco.com/en/US/netsol/ns728/networking_solutions_program_category_home.html

Unfortunately, I don't see any app notes with a Rolm.

Back to TIMG, here's Cisco's data sheet on it...

http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_data_sheet0900aecd80106ee5.html

So looks like the Cisco part number is UNITY-TIMG-1. There should be a dual span TIMG available now too and I think the quad span is in the works. Cisco has tested and documented TIMG between Unity and a NEAX 2400 PBX. Other integrations are in process. However, all the focus with TIMG right now is with T1 CAS where the VM integration happens either with serial or in-band DTMF packets. Dialogic has implemented parsing of these integration packets which makes it transparent to Unity. I doubt your Rolm could provide this type of VM integration though.

ok so what your saying is that if I were to use the t1 I would need to use a serial connector as well?

No, I don't think the Rolm can provide a serial connection so this would not even be a possibility. But I could be wrong.

What I'm really saying is there may be a lot of theoretical possibilities but the only one that has been tested end-to-end, Rolm-to-Unity, is the digital PIMG solution. If you want to pursue T1 options, you should probably work closely with your Cisco account team to ensure you end up with a fully supported solution.

The code in the PIMG and TIMG are pretty much the same firmware. I was an earlier adopter of the PIMG to the 9005 Rolm and it was a bear to get going, but the should be fine to go now. Even with the TIMG, just follow the PIMG documentation and it should work.

http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_data_sheet0900aecd80106ee5.html

Also, try this link out on the dialogic board.

http://www.dialogic.com/support/helpweb/mg/

Just check with your local Cisco SE that that TIMG is still support. Should be, Diaglogic still sells a ton of these for integration with "that other UM system from another vendor"

I used (3) PIMGs into a Rolm 9005. Basically just configured them all as digital phone ports off the PBX and into the PIMG, then to Unity. The new documentation that is posted should work. (helped update it when we did it!)

The TIMG is a cleaner install, but the problem with the TIMG and the ROLM, not sure if the T1 port on your Rolm will transfer the station information and DID all the way through. It doesnt use QSIG or support in this old switch. The PIMG with digital station ports might be your best best.

cheers

cheers!

Thank you everyone for your wisdom. I am proposing to the customer we do PIMG.

can one of you guys tell me which part number I need for theis PIMG for unity and rolm 9751. the config tool has the Pimg digial

and the pricing tool has this other one...

UNITY-PIMG-DIG PBX-IP Media Gateway-Digital $4,000

UNITY-PIMG-ROLM=PBX IP MEDIA GATEWAY-ROLM $4,000

Use the Rolm one. It has the correct config on it for the 9005.

The other model is for avaya and other flavors.

cheers

Thank you so much