I started in the telecommunication in 1976 with the USAF. From 1A1 key equipment and worked my way through Iwatsu, NEC key and PBX, Nortel SL1 A to CS1000's, Mitel's, inside and outside plant cabling, network cabling. 37+ years and still learning.
www.i3techgroup.com
If its not working, get a bigger hammer!
Avaya/Nortel/NEC/Asterisk/Access Control/CCTV/DSX/Acti/UCx