Service · Industry-Focused Engineering

Enterprise & Digital Platform Engineering

PalC engineers enterprise network modernisation, campus and branch connectivity, SD-WAN overlay architectures, unified communications platforms, IoT connectivity solutions, and digital platform infrastructure - purpose-built for large-scale organisations where reliability, security, and operational simplicity determine whether transformation programs succeed in production.

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Enterprise Digital Platform Stack - PalC Coverage

Users & EndpointsCampus · Branch · Remote · IoT · Mobile

SD-WAN & WAN EdgeOverlay · IPsec · DMVPN · ZTP · Policy Routing

Identity & AccessNAC · 802.1X · Zero Trust

Application & UC PlatformsSIP · WebRTC · Video · Collaboration · APIs

IntegrationESB · API Gateway · iPaaS

Infrastructure & OrchestrationKubernetes · VMs · Hybrid Cloud · GitOps · Terraform

Observability & OperationsPrometheus · Grafana · SNMP · NetFlow · ITSM

99.99%Uptime Target

MultiSite Coverage

FullStack Visibility

SD-WANZero TrustKubernetesSIP / UCIoT

EnterpriseGrade Reliability

Multi-SiteConnectivity

End-to-EndObservability

Enterprise digital transformation is not a generic cloud migration exercise - it requires deep understanding of existing network infrastructure, application dependencies, regulatory constraints, and the operational realities of multi-site organisations. PalC brings networking and platform engineering depth to enterprise engagements: SD-WAN architectures that actually work across hybrid WAN fabrics, campus networks designed for segmentation and scale, UC platforms engineered for reliability, and IoT connectivity solutions built for security and manageability at the edge.

Core Capabilities

Enterprise network modernisation, digital platforms, and connectivity engineering

PalC engineers enterprise infrastructure where network reliability, application performance, and operational simplicity are non-negotiable - not demo-ready environments that fail under production complexity.

Campus & Branch Network Engineering

Design and deployment of enterprise campus and branch network infrastructure - wired and wireless, segmented for security, and engineered for scale across hundreds of sites with consistent policy enforcement.

Campus LAN design - spine-leaf, collapsed core, and distribution architectures
Wireless infrastructure - Wi-Fi 6/6E design, survey, and controller deployment
Network segmentation - VRF, VXLAN, and micro-segmentation for security zones
802.1X and NAC integration for device-level access control
Multi-site branch standardisation with template-driven provisioning

SD-WAN & WAN Modernisation

SD-WAN overlay architecture design and deployment - replacing legacy MPLS with hybrid WAN fabrics that deliver application-aware routing, per-site policy enforcement, and centralised management across distributed enterprises.

SD-WAN architecture - overlay/underlay design, transport independence
Application-aware routing - SaaS breakout, QoS policy, and traffic steering
IPsec/DMVPN tunnel design for secure branch-to-DC and branch-to-cloud
Zero-touch provisioning (ZTP) for rapid branch deployment at scale
Hybrid WAN fabric - MPLS + broadband + LTE/5G failover integration

Unified Communications & Collaboration

UC platform engineering for enterprise voice, video, and collaboration - SIP infrastructure, contact centre integration, video conferencing systems, and collaboration tool deployment engineered for reliability and quality of experience.

SIP infrastructure - SBC deployment, trunk engineering, and call routing design
Enterprise voice - IP PBX, unified messaging, and voicemail integration
Video conferencing - room systems, cloud platform integration, and QoS
Contact centre - ACD, IVR, omnichannel routing, and CRM integration
Collaboration platform deployment - Teams, Webex, Zoom infrastructure

IoT Connectivity & Edge Integration

IoT network architecture and device connectivity engineering - edge gateways, protocol translation, device lifecycle management, and secure data pipelines from industrial and enterprise IoT endpoints to cloud analytics platforms.

IoT network design - LoRaWAN, NB-IoT, Zigbee, and Wi-Fi for device tiers
Edge gateway engineering - protocol translation, local processing, and buffering
Device provisioning and lifecycle management at scale
Secure device-to-cloud data pipelines with MQTT and AMQP
Industrial IoT integration - OT/IT convergence, SCADA connectivity

Digital Platform & Application Modernisation

Enterprise application platform modernisation - monolith decomposition, API gateway architectures, integration middleware, and cloud migration for organisations moving from legacy infrastructure to modern, API-first digital platforms.

Monolith-to-microservices decomposition with strangler fig pattern
API gateway architecture - Kong, Apigee, or AWS API Gateway deployment
Integration middleware - ESB modernisation, iPaaS, and event-driven patterns
Cloud migration - lift-and-shift, re-platform, and re-architecture strategies
Legacy protocol bridging - SOAP to REST, MQ to Kafka, FTP to S3

Enterprise Security & Compliance

Security architecture and compliance engineering embedded in enterprise infrastructure - network segmentation, zero trust access, endpoint protection integration, and compliance automation for regulated industries.

Zero trust network access (ZTNA) architecture and deployment
Network segmentation - macro and micro-segmentation with policy enforcement
Endpoint detection and response (EDR) integration with network telemetry
Compliance automation - ISO 27001, SOC 2, GDPR, and industry-specific controls
Security operations centre (SOC) integration and SIEM connectivity

Technical Deep Dive

Proven engineering across enterprise networking, SD-WAN, UC, and platform infrastructure

PalC engineers implement enterprise platforms at the infrastructure and integration level - SD-WAN policy configuration, SIP trunk engineering, Kubernetes-based platform orchestration, and IoT gateway deployment.

SD-WAN - Application-Aware Policy Routing

Per-application traffic steering across hybrid WAN fabric

Application-aware routing policies steer SaaS traffic via direct internet breakout, voice/video via MPLS for guaranteed QoS, and bulk data via broadband - with automatic failover across transport links.

# SD-WAN policy - application-aware routing
policy app-route SaaS-Direct
  match app microsoft-365, salesforce
  action preferred-transport internet
  sla-class latency-sensitive
  fallback mpls

policy app-route Voice-Video
  match app sip, webrtc, zoom
  action preferred-transport mpls
  sla-class real-time
  # QoS: DSCP EF marking
  fallback lte-backup

TransportMPLS + Internet + LTEPolicyApp-aware routingSLAPer-applicationFailoverAutomatic

Campus Network - VXLAN EVPN Fabric

Scalable campus fabric with micro-segmentation

VXLAN EVPN fabric provides L2/L3 segmentation across campus, with per-group policy enforcement, dynamic VNI assignment, and consistent policy from access to core - supporting thousands of endpoints per site.

# Campus VXLAN EVPN - leaf configuration
vlan 100
  name CORP-USERS
  vn-segment 10100

interface nve1
  source-interface loopback0
  member vni 10100
    ingress-replication protocol bgp

router bgp 65001
  address-family l2vpn evpn
    neighbor SPINE-PEERS activate
    advertise-all-vni

FabricVXLAN EVPNSegmentationPer-group VNIScaleMulti-thousand endpointsControlBGP EVPN

Unified Communications - SIP Trunk & SBC Engineering

Enterprise SIP infrastructure with session border control

SIP trunk engineering with SBC deployment for security, interoperability, and call routing - normalisation rules, codec negotiation, and SRTP encryption for enterprise voice across multiple carriers and UC platforms.

# SBC - SIP trunk normalisation rules
sip-manipulation CARRIER-INBOUND
  rule 1 request INVITE
    match-header From uri-host "carrier.net"
    action replace uri-host "enterprise.local"

  rule 2 request INVITE
    match-header P-Asserted-Identity
    action store
    # Preserve caller-ID for compliance

codec-policy ENTERPRISE
  preferred-codec g722 g711u g711a
  dtmf-relay rfc2833
  srtp-mode preferred

ProtocolSIP / SRTPSBCSession border controlCodecG.722 / G.711SecuritySRTP + TLS

IoT Edge - MQTT Gateway & Device Pipeline

Secure IoT data pipeline from edge devices to cloud analytics

MQTT-based IoT gateway with TLS device authentication, local buffering for intermittent connectivity, protocol translation for legacy OT devices, and structured data pipeline to cloud analytics and storage.

# IoT Edge Gateway - MQTT broker config
listener 8883
  protocol mqtt
  certfile /etc/mqtt/server.crt
  keyfile /etc/mqtt/server.key
  require_certificate true
  use_identity_as_username true

# Device auth via X.509 certificate CN
# Local buffer: 48hr store-and-forward
# Upstream: MQTT bridge to cloud broker
connection cloud-bridge
  address analytics.enterprise.com:8883
  bridge_tls_version tlsv1.3
  topic devices/# out 1

ProtocolMQTT / TLS 1.3AuthX.509 certificatesBuffer48hr local storePipelineEdge to cloud

Technology Stack

Enterprise networking, platforms, integration, and operations

PalC's enterprise engineering covers the full infrastructure stack - from campus networking and WAN connectivity through UC platforms, IoT integration, and production operations.

Enterprise Digital Platform Layers - PalC Engineering Coverage

Users & EndpointsDesktops · Mobile · IoT devices · IP phones · Room systems

Campus & Branch NetworkVXLAN EVPN · Wi-Fi 6E · 802.1X · NAC · Segmentation

SecurityZTNA · NAC · Firewall

WAN & SD-WANMPLS · IPsec · DMVPN · SD-WAN overlay · LTE/5G

UCSIP · SBC · WebRTC

Application & IntegrationAPI Gateway · ESB · iPaaS · Microservices · Event Bus

Compute & CloudKubernetes · VMs · Hybrid cloud · On-premises DC

IaCTerraform · Ansible

Observability & ITSMPrometheus · Grafana · SNMP · NetFlow · ServiceNow

Networking & Connectivity

CampusVXLAN EVPN · Wi-Fi 6E
WANSD-WAN · MPLS · IPsec
BranchZTP · Template-driven
IoTMQTT LoRaWAN
WirelessWi-Fi 6E NB-IoT

Platforms & Integration

UCSIP · SBC · WebRTC
APIKong · Apigee · Gateway
IntegrationESB · iPaaS · Kafka
ComputeKubernetes
IaCTerraform Ansible

Operations & Security

MonitoringPrometheus · Grafana
NetworkSNMP · NetFlow · Syslog
ITSMServiceNow · PagerDuty
SecurityZTNA NAC
ComplianceISO 27001 SOC 2

Our Approach

A structured approach to enterprise digital platform delivery

From infrastructure assessment and architecture design through multi-site deployment, integration testing, and operational handover.

Phase 01

Discovery & Assessment

Understanding existing infrastructure, application dependencies, user profiles, security requirements, compliance constraints, and business objectives before defining target architecture

Phase 02

Architecture & Design

Designing campus, WAN, UC, IoT, and platform architectures with detailed HLD/LLD documentation, migration strategy, and phased implementation planning

Phase 03

Implementation & Integration

Building and integrating infrastructure components across sites - network deployment, platform setup, UC configuration, IoT onboarding, and security policy enforcement

Phase 04

Validation & Operational Handover

End-to-end testing, performance validation, user acceptance testing, monitoring setup, runbook delivery, and training for operations teams

Technology StackSD-WANVXLAN EVPNWi-Fi 6ESIP / SBCMQTT / IoTKubernetesAPI GatewayZero Trust

Deployment Scenarios

Where this is applied

Proven patterns across enterprise network modernisation, branch connectivity, communications platforms, and digital transformation programs where reliability and security are non-negotiable.

Multi-Site Enterprise Network Modernisation

Campus and branch network refresh across hundreds of sites - VXLAN EVPN fabric deployment, Wi-Fi 6E infrastructure, 802.1X NAC integration, and standardised branch templates with zero-touch provisioning for rapid, consistent rollout.

SD-WAN Migration & Hybrid WAN Deployment

MPLS-to-SD-WAN migration with hybrid WAN fabric design - application-aware routing, direct internet breakout for SaaS, LTE/5G failover, and centralised policy management for distributed enterprises with hundreds of branch locations.

Unified Communications Transformation

Enterprise voice and collaboration platform modernisation - legacy PBX to cloud UC migration, SIP trunk engineering with SBC deployment, video conferencing room systems, and contact centre platform integration for omnichannel customer engagement.

Industrial IoT & Smart Building Connectivity

IoT connectivity architecture for manufacturing, logistics, and smart building environments - sensor networks, edge gateways, OT/IT convergence, SCADA integration, and secure device-to-cloud data pipelines for analytics and automation.

Legacy Application Modernisation

Enterprise application platform migration from legacy infrastructure to modern cloud-native architectures - monolith decomposition, API gateway deployment, integration middleware modernisation, and phased migration with zero-downtime cutover strategies.

Secure Enterprise & Compliance Programs

Security architecture programs for regulated enterprises - zero trust network access deployment, network segmentation with micro-segmentation policies, SOC integration, compliance automation for ISO 27001 and SOC 2, and continuous security monitoring.

Business Outcomes

What organisations achieve with PalC enterprise digital platform engineering

Modernised network infrastructure

Campus and WAN networks designed for current and future demands - VXLAN EVPN fabrics that scale to thousands of endpoints, SD-WAN overlays that deliver application-aware routing, and Wi-Fi 6E that supports density without degradation.

Reduced WAN costs with improved application performance

SD-WAN architectures that replace expensive MPLS circuits with hybrid WAN fabrics - direct SaaS breakout reduces latency, application-aware QoS protects voice and video quality, and LTE/5G provides resilient failover.

Reliable enterprise communications

UC platforms engineered for production reliability - SIP infrastructure with redundant SBCs, QoS-protected voice and video paths, carrier-grade call routing, and collaboration platforms integrated with existing enterprise systems.

Connected IoT with secure data pipelines

IoT connectivity that works at enterprise scale - device provisioning and lifecycle management, edge gateways with local processing and store-and-forward, TLS-secured data pipelines, and OT/IT integration without compromising security.

Faster multi-site deployment

Template-driven branch provisioning and ZTP that reduce per-site deployment time from weeks to days - standardised configurations, automated validation, and centralised policy management across distributed enterprises.

Stronger security posture and compliance

Zero trust architecture, network segmentation, and compliance automation embedded in infrastructure from day one - not retrofitted after deployment. Continuous monitoring and automated compliance reporting for audit readiness.

Platform Operations

Enterprise platforms that are observable and operable from day one

PalC builds enterprise observability alongside the infrastructure - network health dashboards, application performance monitoring, SD-WAN analytics, and operational runbooks that give IT teams the visibility to manage complex environments confidently.

Network health dashboards - uptime, throughput, errors - Per-site and per-link dashboards showing interface utilisation, error rates, latency, and jitter across campus, WAN, and SD-WAN fabric - with alerting before SLA thresholds are breached.
SD-WAN analytics and application performance - Application-level visibility across SD-WAN overlay - per-application latency, jitter, loss, and transport selection decisions surfaced in real-time dashboards with historical trend analysis.
UC quality monitoring - MOS, jitter, packet loss - Voice and video quality metrics tracked per call and per site - Mean Opinion Score (MOS), jitter, packet loss, and codec usage dashboards for proactive quality management and troubleshooting.
Operational runbooks for enterprise failure scenarios - Structured runbooks for WAN link failure, SD-WAN tunnel flap, SIP trunk outage, campus switch failure, IoT gateway disconnect, and security incident response - delivered as part of every engagement.

Alerting & ITSMAlertManager · PagerDuty · ServiceNow

Network & Application DashboardsGrafana · SD-WAN analytics · UC quality

Metrics & TelemetryPrometheus · SNMP · NetFlow · Syslog

Automation & ProvisioningAnsible · Terraform · ZTP · GitOps

Enterprise InfrastructureSD-WAN · Campus · UC · IoT · Cloud

SLA-MonitoredAuto-ProvisionedCompliance-Tracked

Next steps

Modernising your enterprise network and digital platforms?

Whether designing a new campus fabric, deploying SD-WAN across hundreds of branches, modernising your UC platform, connecting IoT at scale, or migrating legacy applications - PalC engineers can define and deliver the right architecture.

Get in touch

Discuss your infrastructure goals with our experts.

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