E&M query

[n.oneill]

Hi

I want to set up 4 E&M links between 2 PBX's over our data line. I plan to have these as clear channel and would like some advice. The routers are a 1761 and a 3660

1) What IOS do I need is it just IP or voice or vox?

2) I was planning on a NM-2V in the 3660 so I presume I don't need anymore DSP's?

Thanks in advance

[robrhodes · Accepted solution]

Use IP Voice Plus version of IOS (1760) and any Plus version for the 3660.

An NM-2V has all of the DSPs required to support 4 analog voice ports in the 3660.