Hosted VoIP and Business Phone Systems in Central Texas
A hosted VoIP phone system runs in a carrier's cloud and reaches your desk phones and mobile apps over your internet connection, with no phone server on site. Engineer Austin helps you choose the service, prepares the network it depends on, plans the number port and cutover, and keeps voice working across every location.
The phone system and the network under it
- The phone system itself: auto-attendant, ring groups and call queues, desk phones and desktop and mobile apps, voicemail to email, business texting and fax, configured to how your office answers the phone.
- Network readiness. A voice VLAN and phone firewall zone at each site, quality-of-service (QoS) priority for voice, SIP ALG (a firewall feature that rewrites call-setup traffic) handled correctly, and DHCP that hands phones the right settings.
- Carrier selection on equal terms. Hosted services, an on-premises appliance and third-party options compared side by side with pros, cons and pricing, and a plain statement when the cheaper option is sound.
- Number porting and cutover planning: an inventory of every number, line and fax, a port schedule, a cutover window, and the old service kept alive until the new one is verified.
- Carrier coordination: port requests, trunk orders, Business Associate Agreements where health information is involved, and the support ticket when the fault is on the carrier's side.
- Multi-site systems with one dial plan, extension dialing between offices, and a voice network built the same way at every branch.
- Microsoft Teams Phone. Calling, meetings and chat in one client for organizations already on Microsoft 365, with the same porting and network readiness work as any other phone system.
- Secure cloud fax for healthcare. A firm-hosted service that files each fax as a PDF into a SharePoint library, under BAAs with Engineer Austin and the carrier.
- Measurement before recommendation. Where records exist, a year of carrier call-detail records is analyzed before any system is proposed: exact counts, not estimates.
- Ongoing support under the Managed Service Program: moves, adds and changes, monitoring of the voice network, and a monthly line on the invoice you already receive.
Measure, compare, cut over, support
Measure
We inventory every number, line, fax and handset at each site, review carrier call records where available, and check whether the network and internet circuits can carry voice reliably. Findings are written down before any option is priced.
Options and proposal
You receive a proposal with options at a glance, the pros and cons of each, one-time and monthly costs priced independently, and our recommendation. The decision is yours. Nothing is ordered before your written approval.
Prepare and cut over
Voice VLANs and switch tagging are pre-staged during the day because they carry no traffic yet. Firewall changes that could disturb calls are made after hours. Phones are provisioned, numbers port on the scheduled date, and the old service stays up until every line is confirmed.
Support
Staff get a short walkthrough and a written quick reference. After cutover the voice network is monitored and managed with the rest of your network, and we remain your single point of contact with the carrier.
Handed over at cutover
- A written proposal with each option priced independently and a stated recommendation.
- A number inventory and port schedule, with the cutover plan in writing.
- Voice VLAN, QoS and firewall configuration documented in the site as-built.
- A call-flow document showing how the auto-attendant, queues and voicemail are set up.
- Administrative access to the phone service in your name; you own the numbers and the account.
- For hosted fax, a monthly volume report and the executed Business Associate Agreements.
How AI speeds this up for you
The carrier call-detail records are sorted and summarized with AI assistance, and the call-flow document and cutover checklist are drafted from your number inventory, then reviewed by the person who will run the cutover. A proposal built on exact counts reaches you sooner. How we use AI.
Engineered before the phones arrive
We build the network first
Most phone problems are network problems: a missing voice VLAN, a firewall rewriting SIP packets, a circuit that cannot hold a call during a large upload.
We size the circuit, the voice VLAN and the QoS policy to stated design criteria for concurrent calls and headroom, and test it before the phones arrive and after any change. The platforms we compare are re-evaluated every year, and our voice-readiness checklist is revised after each cutover.
Engineer Austin is Texas Registered Engineering Firm F‑15739; our team designs the voice network on engineering principles, to house standards set by our licensed Professional Engineer.
Who this is for
Medical practices and home-health agencies that need voice and fax handled under HIPAA, multi-site businesses that want one phone system across a main office and branches, cities and districts replacing aging phone lines, and offices moving off a copper phone service the carrier is retiring.
Hosted VoIP depends on the network engineering and structured cabling underneath it.
Hosted VoIP, answered plainly
Will we keep our existing phone numbers?
Yes. Numbers are ported from your current carrier to the new service on a scheduled date. We inventory every number first, including fax lines and numbers that forward elsewhere, so nothing is missed. Your current service stays active until the port completes and every line has been tested, so callers never reach a dead line.
Why does a phone system need changes to our network?
Voice traffic is sensitive to delay and to being altered in transit. Phones work best on their own VLAN with quality-of-service priority, a firewall policy that does not rewrite SIP packets, and DHCP that hands them the right settings. We build and test that foundation at each site before the phones arrive.
Can our phones work across several locations?
Yes. A hosted system treats every site as part of one phone system: one dial plan, extension dialing between offices, shared queues and one auto-attendant. We build the voice network the same way at the main office and each branch, so every site behaves identically and can be supported from the same documentation.
Do you offer HIPAA-compliant fax?
Yes. Our firm-hosted secure fax service receives each fax as a PDF, files it into a SharePoint library and sends a notification email that contains no patient information. Outbound faxes are sent by saving a PDF to an outbox folder or scanning from the copier. Business Associate Agreements are signed with Engineer Austin and the carrier, and nothing is installed on site.
Do we need a phone server in our office?
Usually not. A hosted system runs at the carrier and needs only phones, a sound network and an internet connection. Where it fits better, we also design and price a client-owned on-premises appliance on an encrypted carrier trunk, which can serve fax and later run office phones. Both are priced side by side.
What happens to the phones if our internet goes down?
Calls still reach the carrier, which can route them to mobile apps on staff phones or forward them to a cell number until service returns. For sites that cannot afford a gap, we design multi-WAN failover so the office moves to a backup circuit such as LTE or Starlink automatically, and the phones keep working.
Can our phone system run inside Microsoft Teams?
Yes. If your organization already works in Microsoft 365, Teams Phone adds calling to the Teams client your staff use, with desk phones where they are wanted. We compare it against hosted VoIP on equal terms, and the same work applies: a number inventory, a port schedule, voice readiness on the network and a cutover that keeps the old service alive until every line is verified.
Start with a written assessment.
Tell us what you have and what is not working. Someone from our team, not a salesperson, replies within one business day by email or phone, and brings in our engineer when your request needs one. The assessment report is yours to keep whether or not you buy anything.