You simply cannot avoid phone calls from most of the job roles today. Thats an evident part. Even if you are on the corporate side, you will be required to co-ordinate with vendors/ joinees/ candidates scheduled for interviews etc over phone only.
You need to firstly remove this roadblock from your mind as you we simply can't imagine a job role without phone calls in tdays age. ven if you are in IR frequent liasoning, co-ordination with labour consultants etc happens over phone only as nobody has got enough time to visit each time to your office for this.
This is people's business. Its all about interaction & we have to accept that. No matter how much technology pours into our lives, one cannot ignore conversations. If you still find phone calls annoying then try switching to a proper back office/admin part like preparing payrolls, maintaining employee database, several types of work on excel etc.
Thanks,
Anand