Tecom has been around for quite some time and has OEM lots of brand names. Their products IMHO, has always claimed to do more than what they could do. Tecom is also the most bug ridding product I have ever encountered in 30 years of being in this industry.
I don't like Tecom, just my opinion. IMHO, the grief and bugs I have dealt with their products on the TDM side, forget about dealing with that on the IP side.

Carl,
You want margin on the IP side, you want stable hardware, Xorcom is the product. Tech support is weak, very weak, you need to learn this product on your own, but the good thing is it is inexpensive, solid and you have no license fees.

If you want an Ipitomy system, I have one I evaluated, will give it to you for nickels on the dollar.