Our team
Scott Dunham

Scott Dunham – Founder

Scott has been in the answering service business since 1988, working in customer service, sales, bookkeeping, customer relations — you name it, he’s probably done it. Scott is patient and methodical, and finds a kind of serenity in his work.

When he is not at his desk, Scott can be found on hiking trails all along the front range in Colorado — sometimes leading his hiking group, and sometimes being led by his dog, Teddy. He also enjoys gardening and listening to audio books.


Chad Phillips – CEO

Chad became interested in computer programming back in junior high school, and has worked as a professional developer for more than 15 years. His primary focus has been in building complex software and computer systems, with specific expertise in voice communications and web software. He is highly security-conscious and tends towards being a perfectionist at work.

In his free time, Chad loves expanding his horizons; he has been a longtime meditator and practitioner of Vinyasa yoga, and he also donates a lot of his free time consulting on and writing software for open source projects. When he’s not in front of a computer you can find him drinking Kombucha Tea and playing his guitar.

Chad Phillips

Mariel Geiger

Mariel Geiger – Sales Manager

Mariel strives to cultivate and maintain strong connections with Apartment Lines customers and prospective partners. With an extensive background in sales, marketing and project management, her priority is always building exceptional, long lasting customer relationships by gaining a clear understanding of our customer's business needs and offering prompt and effective guidance and solutions.

Beyond her professional goals, she actively engages in environmental advocacy, striving to make a positive impact on the planet through research, awareness, partnerships and legislative progress.

When not advocating for the environment, she finds solace in the great outdoors, hiking, traveling and exploring nature's wonders.


Jess Hadaway – Operations Manager

Jess is a United States Navy veteran, with a bachelor’s degree in accounting and a master’s degree in business. Over the past 10 years she's successfully led several teams for Fortune 500 companies.

Outside of work, she enjoys working out, solving puzzles, gardening, and spending time with her daughter.

"Never stop learning, because life never stops teaching." - Kirill Korshikov

Jess Hadaway

Diana Holman

Diana Holman – Customer Service Manager

Diana has been working in the answering service industry for 36 years, and has been serving customers in some form or another since she was 15 years old. Her philosophy of treating others as she would want to be treated “at all times and in every aspect of my life” has served her, and Apartment Lines, quite well.

Back in the day, Diana used to love thrill-seeking activities like skiing, riding motorcycles, and jet skiing; now what makes her happiest is spending time with her children and grandchildren.


Becky Parrott – Billing Manager

Becky has worked in the answering service field since 1990. She's had a wide variety of duties over the years, from sales representative to office manager, and has found her new niche in billing/invoicing.

In her free time she enjoys traveling with her husband of 24 years, whether it’s to the beach in Alabama or snowmobiling in Michigan. When not traveling, you might find her on the golf course or working in her yard.

Becky Parrott