Its a great place to learn on your own, but company provides no formal training at all, they just let you out in the world with little to no knowledge of the technology supported. They are hiring mostly people with data networking background with little to no knowledge of telephony and call center technology.
No salary bracket, so If you don't know what is the industry standard rate at the time of compensation bargaining and have short changed your self, you will become stuck at that rate. Even come appraisal time, they will not align your salary with your peers. This is very disheartening since by that time, you would already have an idea of your peers rate which is up to 120% more, for the same job you are doing, and this is beside good performance, and flowery reviews that you are getting from your superiors. This is because company have a policy that you can never get more than x% increase. The only option would be to resign and come back after 6 months and get the proper compensation offer.