Not having a call transfer feature makes your business look untrustworthy.
As a small business owner myself, I’ve gone from the picnic table as a conference room to taking venture capital. In the early days, it’s common to take customer calls and have to tell them,
“Actually, Jimmy does the billing now. Can you call him at 415-555-8008?”
And when the company gets bigger and buys a traditional business phone system PBX, you hear your employees ask, “How do I transfer a call on this thing?”
Our webmaster made a good point once – asking customers to dial a separate number is like asking website visitors to make extra mouse clicks. They both lower the conversion rate.