Digital Infotech / Engineering Execution
02 Communication Core
Mapped before we quote · Hardened before we ship

A VoIP phone will not fix infrastructure.

Mapped before we quote. Hardened before we ship. Tested before go-live.

Every call flow diagrammed, every trunk fraud-hardened, every integration tested before users ever pick up the handset.

Book a Voice Readiness Report arrow_forward
LIVE · 3 SBC · 240 EXT · MOS 4.4
SBC
Fraud-hardened by default
PINs rotated · international locked · geo-block allow-list · SIP-scan post-deploy
QoS
Network-validated voice
Voice VLAN · jitter/MOS measured · upload headroom certified before any handset ships
BPMN
Call-Flow Workshop
IVR tree · queue rules · after-hours routing — signed by client before hardware lands
DR
Direct Routing for Teams
Operator Connect ready · UAT-tested · CRM screen-pop wired to the actual contact record
The pain pillars

Five ways business phone systems become liabilities.

/ 01warning

Quoted by extension count, designed by guess.

Wrong licence tier. Wrong queue rules. IVR menu doesn't reflect how the business actually works. Half your team is on a softphone they never use.

/ 02warning

A RM 42,000 toll-fraud bill after a holiday weekend.

Default extension PIN 1234. International dial-out enabled. No SBC. No geo-blocking. The attacker dialled Cuba and Somalia for a week.

/ 03warning

Network never validated for voice.

No QoS. No voice VLAN. SIP ALG enabled on the firewall. Upload bandwidth 1 Mbps on a Streamyx line. Calls drop. The PBX is blamed. The network was the problem.

/ 04warning

Integration theatre.

"WhatsApp integration" was a Business app on a receptionist's phone. "Teams integration" never had Direct Routing. "CRM screen pop" pops the home page, not the contact record.

/ 05warning

No operational readiness.

The PBX has been offline for 8 hours before a customer walks in to ask. Backup is an ISO on the same server. Every move is a truck roll.

How we eliminate each pain

One counter per pain. One deliverable per counter.

Pain
Quoted by extension count
Call Flow First, Hardware Second
Call Flow Workshop output: BPMN diagram, IVR tree, queue rules, after-hours routing, multilingual prompt list — signed by client.
Toll fraud
Fraud-Hardened by Default
Day-1 hardening: PINs rotated, international disabled with 2-step unlock, geo-block allow-list, SBC, TLS / SRTP, post-deploy SIP scan, fraud-monitoring rules with shared-risk SLA.
Network blindness
Network-Validated Voice
Pre-deployment LAN/WAN voice readiness test (MOS, jitter, upload headroom, SIP-ALG check). Voice VLAN configured per INSYTX standard (VLAN 20). QoS marked end-to-end.
Integration theatre
Real CRM + WhatsApp + Teams
Direct Routing (SBC-backed) for Teams Phone or Operator Connect. WhatsApp Business API via verified BSP. CRM connectors that pop the contact record. UAT-tested.
No operational readiness
Documented handover + MACD self-service
As-built dial plan, credentials vault, monitoring dashboard, in-house admin training, MACD SLAs published.
The Call Flow Workshop

The day that replaces the extension count.

A 90-minute session, on site or remote.

You sign the workshop output. The PBX is built to it. The output goes into the handover pack.

5 outputs
  1. 1.A BPMN diagram of every inbound call path
  2. 2.A BPMN diagram of every outbound call class with permission boundaries
  3. 3.An IVR tree with multilingual prompt list (BM, EN, ZH, TA)
  4. 4.A queue and hunt-group plan with after-hours routing
  5. 5.A list of integrations (CRM, WhatsApp, Teams) with the BSP / SBC / Direct Routing requirements named
Proof block

Sample artifacts we will share on request.

account_treeSample Call Flow workshop output (BPMN + IVR tree)
checklistSample fraud-hardening checklist
network_checkSample voice readiness report (MOS, jitter, upload, SIP-ALG)
hubDirect Routing architecture diagram (SBC + SIP trunk + Teams tenant)
chatSample WhatsApp Business API onboarding doc
menu_bookAs-built handover pack (dial plan, trunks, DIDs, queue logic, recording policy, retention)
lanINSYTX VLAN scheme (VLAN 20 Voice + QoS marking)
verifiedCompliance bar
PDPA (call recording retention, Section 7)MCMC (number porting, VoIP licensing, emergency routing)Microsoft / Zoom / Google certified room device listsNFPA 72 (where PA paging integrates with fire alarm)MS-ISO 27001 (in pipeline)
Lead magnet · Voice Readiness Report

Find out if your network can actually carry voice — before you migrate.

A pre-deployment LAN/WAN test (MOS, jitter, upload headroom, SIP-ALG check). Output: a go / not-yet / upgrade-required verdict on your existing site.

lock

Confidential. Held under PDPA-compliant retention. Used only to scope the readiness test.

Confidential. Held under PDPA-compliant retention. Used only to scope the readiness test.

The recurring-service hook

Telephony is not finished at handover. It is operating from the moment it goes live.

Every PBX deployment converts into a Voice Health retainer. Quarterly call-quality reports. Fraud attempts blocked. Queue performance and abandonment trends. MACD throughput. Patch cadence and trunk health. The client owns the system; we operate the parts they choose.

Compare the three Voice Health tiersarrow_forward Or speak to engineering