CommunicationsIP-PBX & VoIP Phone System
Business IP-PBX: extensions, trilingual IVR, call transfer, recording and internal calls between Lao and Thai branches over VPN.
What we usually find on site
The old analog PBX cannot grow, spare parts are hard to find and it cannot ring anyone outside the office. So salespeople call customers from personal mobiles. There is no call record, and when they resign, customers keep calling their personal number.
Telephony over your network
An IP-PBX brings desk IP phones, softphones on mobiles and PCs, and outside lines into one system. Outside lines connect two ways: your existing lines through an FXO gateway (keep your numbers), or a SIP trunk where a Lao carrier offers one in your area. Branches linked by VPN or SD-WAN call each other on internal extensions at no call cost.
Features people use every day
- IVR in three languages: "Press 1 for Lao, 2 for Thai, 3 for English"
- Ring groups and queues for sales and service
- Call recording for coaching and disputes (announce it in the IVR)
- Softphones so sales and site staff answer the company number on their mobiles
The network voice needs
Choppy, broken audio is nearly always a network problem, not a phone problem. We put phones on a dedicated voice VLAN, mark QoS (DSCP EF) end to end through to the firewall, power handsets from PoE switches and put the IP-PBX and those switches on UPS. Otherwise, every power cut takes the whole building's phones down with it.
Tell us how many extensions, outside lines and branches you have, and we will design the dial plan and equipment list.
What it does
Multilingual IVR
Lao/Thai/English voice menus with business-hours routing.
Mobile softphone
Make and take company-number calls anywhere with internet.
Call recording
Store and search recordings by number or date.
Multi-site trunking
Internal calls between Lao and Thai branches over VPN.
Call reports (CDR)
See unanswered calls and call volume by hour.
Hotel PMS integration
Wake-up calls, room status and call billing with supported PMSs.
Design and rollout
- 1
Survey extensions, outside lines and current call handling.
- 2
Design the dial plan, IVR and inter-site trunking.
- 3
Prepare the network: voice VLAN, QoS, PoE and UPS.
- 4
Install the IP-PBX, gateways and handsets; move existing lines onto FXO ports.
- 5
Train receptionists and users.
Where it fits
- Hotels needing in-room phones and wake-up calls.
- Companies with a Vientiane office and branches in Thailand.
- Mine sites linking office, plant and camp internally.
- Hospitals needing paging and internal emergency numbers.
Typical system sizes
Small Office
Fits: Up to 30 extensions
- IP-PBX appliance and FXO gateway
- IVR and ring groups
- IP phones and softphones
Business
Fits: 30–300 extensions, multi-site
- Inter-site trunking over VPN/SD-WAN
- Call recording and reports
- Voice VLAN and QoS
Hospitality
Fits: Hotels and resorts
- Guest-room phones and wake-up calls
- Integration with supported PMSs
- Emergency extensions and paging
Brands we supply & install
All brand names and trademarks belong to their respective owners. Mention does not imply official partnership unless explicitly stated. Products are sourced through legitimate distribution channels.
FAQ
Can we keep our existing phone numbers?
Yes. Existing lines plug into an FXO gateway connected to the IP-PBX, so the numbers stay the same and customers notice nothing.
Do phones work during a power cut?
Yes, if the IP-PBX, gateways and PoE switches are on UPS. Each IP phone draws roughly 3–7W of PoE, and we include that in the UPS sizing.
Cloud PBX or on-premises PBX?
An on-premises PBX keeps internal calls working when the internet drops and connects analog lines easily. Cloud PBX suits scattered teams but goes silent when the internet does. For Lao offices with analog lines we usually recommend on-premises.
Related guides
VLAN Basics for Business: Keeping Guests, Cameras and Staff Apart
What a VLAN is, how 802.1Q tagging works, a sample VLAN/IP plan for a 100-person office, and how to migrate a live flat network without downtime.
PoE Budget Explained: Powering Cameras and Access Points
Why cameras drop out at night when they worked fine all day: 802.3af/at/bt, how a switch actually allocates its PoE budget, and the UPS behind it.
Sizing a UPS Properly: VA, Watts, Power Factor and Real Battery Runtime
Why some 3 kVA UPS units only deliver 1,800 W, how to choose between offline, line-interactive and online, how to estimate runtime realistically, and how to pair a UPS…
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We’ll come back with a few questions, then a first design. The first consultation is free, in Lao, Thai or English, on WhatsApp or our Facebook page.