Business Phone Systems

Flat Rate Billing:

Predictable monthly pricing for your business phone system — no per-minute surprises on domestic calling.

Do Not Disturb:

Block interruptions during focus time or meetings without missing messages — callers go to voicemail or another destination.

Presence:

See who is available, on a call, or away so your team spends less time playing phone tag.

Call Hold & Call Park:

Put a caller on hold or park a call and pick it up from another desk phone in your office.

Company-Wide Directory:

Help callers and staff find the right contact by department or name across your organization.

Direct Phone Numbers:

Assign dedicated DIDs to individuals or teams for direct inbound access.

Virtual Fax:

Send and receive faxes through the isp.net Portal — no physical fax machine required.

Caller ID:

See who is calling before you pick up — on desk phones and supported mobile endpoints.

Simultaneous Ring:

Ring your desk phone, mobile, and other endpoints together so you answer wherever you are.

Hot-Desking:

Log into any desk phone with a simple code and make it yours — your extension and caller ID follow you.

Web Portal:

Manage extensions, voicemail, call routing, and users through an easy isp.net Portal interface.

Secure Voicemail:

Access protected voicemail from desk phones, mobile apps, or the portal — wherever you are working.

Music on Hold:

Replace generic hold music with customized audio that matches your brand.

Attended & Blind Transfer:

Transfer calls with or without announcing the caller first — on every handset that supports transfer.