Here it goes.....
My Mitel rep says he hasn't touched a SX-50 in at least 10 years, so couldn't really help me. One of our hotels has a SX-50 in it, works just fine. I'm trying to see if it can accept a PRI card. Trying to reduce costs for our circuits. I'm fairly sure it doesn't support a PRI card, but just need confirmation from someone. Could someone please tell me?
Thanks.