Hi RebeccaD, some good points above and I'll throw my opinion in as well as I used to manage a telesales team booking appointments for telecoms & vehicle tracking.
Generally when I had a new start I gave them 2-3 months without sales targets as they were building and cleansing their database. Within this period, they were expected to get 30-40 leads per day added to their base. 'Leads' were classed as useful information e.g. DM name, current supplier, out of contract dates etc. 3 months was generally enough to have a base of 'leads' of 1500-2000 companies who they could call and have proper conversations with as opposed to cold calling.
After 3 months I was expected 5 appointments set per week. I generally worked off this that 1 would blow out and 1 would be a non-viable appointment so we would get 3 good sales meetings for the reps. I personally targeted on the meetings sat per week and the appointments booked. It was more important for me to target on those sat as if you target purely on the booked, then you generally get loose appointments and the quality drops but if they knew they were being targeted on the quality of sat appointments, attitudes quickly changed to match this.
I only ever started targeting staff on input e.g. number of calls made, amount of call time etc. if they were not achieving their targets for sat & booked appointments. To give you an idea of those targets if they weren't achieving main targets, I expected 80-100 dials (account for gate keepers/ answer machines etc.) and 2 hours plus of call time.
it is hard to say how many appointments per day you should expect as it is all down to the base they are working off along with their own particular skills. When I did the job I managed eventually, I was capable of booking 3-5 meetings per day and having 15+ appointments sat that were sales meetings. That being said, I was one of the first in the business and worked hard to create a good, clean database of companies.
My best member of staff would have booked about 15-20 appointments per week making about 60 calls per day on average. At the other end of the scale, we had a guy who would make about the same amount of calls book 10 appointments per week max but the quality of those appointments were great meaning he had about the same sales conversion as the guy booking double the amount of meetings.
I generally expected 10 appointments per week booked and 5-7 sales meetings sat. As I mentioned, a lot of what results are achieved are depending on the database they are working from and how good the telesales person is.
Feel free to message me if there is anything else I can help you with.