Phone Systems
Built for Clear, Reliable Communication.

Golden Castle installs and maintains professional business phone systems and telecommunications infrastructure for offices and commercial facilities across Washington. From traditional telephone wiring and VoIP-ready connections to phone outlets, equipment installation, and system upgrades, we deliver organized, dependable communication solutions tailored to your business needs. Whether you're setting up a new office, expanding your existing phone system, relocating your business, or upgrading outdated infrastructure, our team provides professional cabling, equipment connections, and system testing to support reliable communication. We focus on clean installations, seamless integration with your network, and scalable infrastructure designed to grow with your business. Golden Castle helps keep your team connected, your operations running smoothly, and your business ready for the future.

Book a free consultation
or reach us directly
206-209-7421
telecom@goldencastle.us

Installation & Setup

  • Business VoIP & IP Phone InstallationInstallation and setup of business VoIP telephone systems, including IP desk phones, Ethernet connections, PoE connectivity, device provisioning, and calling tests. We help businesses install modern, reliable telephone equipment.
  • Telephone Cabling & WiringProfessional installation, termination, labeling, testing, and repair of business telephone cabling, including Cat5e, Cat6, RJ11/RJ45 outlets, voice patch panels, and telephone distribution wiring.
  • PBX & Cloud Phone System SetupInstallation and configuration of supported on-premises and cloud-based PBX systems, including telephone extensions, voicemail, auto-attendants, call forwarding, ring groups, and incoming call routing.
  • VoIP Network InfrastructureNetwork cabling and equipment setup to support business IP telephones, including PoE switches, network connectivity, voice VLAN configuration, QoS settings, and telephone network testing.
  • Conference & Office Phone InstallationInstallation and configuration of compatible conference phones, receptionist phones, executive desk phones, and shared office telephones for business communication.

Upgrades, Repairs & Support

  • Phone System Upgrades & VoIP MigrationUpgrade outdated analog and digital phone systems to modern VoIP solutions. Services include existing cabling assessment, replacement equipment installation, network preparation, and coordination with telephone service providers.
  • Phone System Repair & TroubleshootingDiagnose and repair telephone wiring, network connectivity, PoE power problems, equipment failures, and supported VoIP configuration issues. Restore reliable operation through testing and fault isolation.
  • Phone Relocation & MaintenanceRelocate telephones during office moves, install additional extensions, replace equipment, update supported configurations, and provide scheduled maintenance and ongoing phone-system support.

Telephone Installation & Infrastructure

ServiceDescription
IP Phone InstallationInstall, connect, provision, and test business IP desk phones
Telephone CablingCat5e/Cat6 voice and data cable installation
Telephone OutletsInstall and terminate RJ11/RJ45 outlets
Voice Patch PanelsInstall, organize, label, and terminate telephone patch panels
PoE Network SwitchesInstall and connect compatible PoE switches for IP phones
Conference PhonesInstall and configure compatible IP conference telephone equipment
Network ConfigurationConfigure supported voice VLANs, QoS, and IP phone connectivity

Phone System Configuration

ServiceDescription
PBX SetupInstall and configure supported on-site PBX systems
Cloud VoIP SetupConfigure supported hosted telephone systems and devices
Telephone ExtensionsCreate, assign, and configure user extensions
Auto-AttendantSet up automated telephone menus and greetings
VoicemailConfigure voicemail boxes, greetings, and supported voicemail-to-email
Call ForwardingConfigure call transfers and forwarding rules
Ring GroupsConfigure multiple phones to ring together
Business Hours RoutingSet up open-hours, after-hours, and holiday call handling
Phone Number MigrationCoordinate number porting and service activation with the customer's provider

Repairs, Upgrades & Maintenance

ServiceDescription
Telephone TroubleshootingDiagnose phone connectivity and calling problems
Wiring RepairsRepair damaged or faulty telephone cabling and outlets
Equipment ReplacementReplace damaged or outdated compatible telephones
Analog-to-VoIP UpgradesPrepare and transition older telephone installations to VoIP
Office RelocationDisconnect, move, reconnect, and test phone equipment
Additional Phone ExtensionsInstall and configure new telephone stations
System MaintenancePerform supported updates, configuration changes, and system testing