# Multi-line telephone systems

*/Products/Multi-line_telephone_systems*

Special purpose telephones

## Product Bo M

**Input To**:
- [Telephone System Installation](/Processes/Telephone_System_Installation)
**Summary**: A small-business telephone system of desk handsets and a central control unit that shares several incoming lines across many extensions with hold, transfer, and intercom; it is built into office communications and PBX installations up the chain.
**Output Of**:
- [Electronics Assembly](/Processes/Electronics_Assembly)
**Components**:
- Name: Desk Telephone Handsets · Quantity Note: one per user station · Required Input: ABS Plastic
- Name: Key Service Unit · Quantity Note: central control and line-sharing module · Required Input: 
- Name: Line Interface Cards · Quantity Note: terminate each central-office line · Required Input: 
- Name: Station Wiring Cable · Quantity Note: links handsets to the control unit · Required Input: Twisted Pair Cable
- Name: DC Power Supply · Quantity Note: powers handsets and control unit · Required Input: 
- Name: Printed Circuit Board · Quantity Note: control logic · Required Input: Copper Clad Laminate
**Financed By**:
- [Equipment Leasing](/Services/Equipment_Leasing)
**Packaged In**:
- [Cardboard Shipping Carton](/Products/Cardboard_Shipping_Carton)
**Delivered As**:
- [Hosted Voice Service](/Services/Hosted_Voice_Service)
**Warranted By**:
- [Equipment Warranty Plan](/Services/Equipment_Warranty_Plan)
**Physical Good**: true
**Produced With**:
- [Surface Mount Placement Machine](/Products/Surface_Mount_Placement_Machine)
- [Reflow Soldering Oven](/Products/Reflow_Soldering_Oven)
**Runs Software**:
- [Telephone System Firmware](/Software/Telephone_System_Firmware)
**Assembled From**:
- [Control Unit Chassis](/Products/Control_Unit_Chassis)
- [Telephone Handset Assembly](/Products/Telephone_Handset_Assembly)
**Consumes To Make**:
- [Solder](/Products/Solder)
- [Electrical Connectors](/Products/Electrical_Connectors)
**Has Measurement**:
- [Line Capacity Count](/Metrics/Line_Capacity_Count)
- [Extension Count](/Metrics/Extension_Count)
- [Audio Quality Rating](/Metrics/Audio_Quality_Rating)
**Transforms Into**:
- [Office Communications System](/Products/Office_Communications_System)
- [Private Branch Exchange System](/Products/Private_Branch_Exchange_System)

## Neighborhood

### Parent

- [Special purpose telephones](/Products/Special_purpose_telephones) — parent · Products

### Siblings

- [Amplified telephones](/Products/Amplified_telephones) — siblings · Products
- [Hearing impaired telephones](/Products/Hearing_impaired_telephones) — siblings · Products
- [Multiline telephone systems](/Products/Multiline_telephone_systems) — siblings · Products
- [Personal banking chamber PBC telephones](/Products/Personal_banking_chamber_PBC_telephones) — siblings · Products
- [Secure voice equipment](/Products/Secure_voice_equipment) — siblings · Products

### Related (uses tool)

- [Professional Staffing Firm](/CompanyTypes/Professional_Staffing_Firm) — uses tool · CompanyTypes
- [Service Coordinator](/JobTypes/Service_Coordinator) — uses tool · JobTypes
- [Warehouse Clerk](/JobTypes/Warehouse_Clerk) — uses tool · JobTypes
- [Ward Clerk](/JobTypes/Ward_Clerk) — uses tool · JobTypes
- [Warranty Claims Clerk](/JobTypes/Warranty_Claims_Clerk) — uses tool · JobTypes
- [Medical Receptionist](/JobTypes/Medical_Receptionist) — uses tool · JobTypes
- [Fleet Dispatcher](/JobTypes/Fleet_Dispatcher) — uses tool · JobTypes
- [Service Controller](/JobTypes/Service_Controller) — uses tool · JobTypes
- [Answering Service](/CompanyTypes/Answering_Service) — uses tool · CompanyTypes
- [Answering And Dispatch Services](/CompanyTypes/Answering_And_Dispatch_Services) — uses tool · CompanyTypes
- [Receptionist](/JobTypes/Receptionist) — uses tool · JobTypes
- [Labor Federation](/CompanyTypes/Labor_Federation) — uses tool · CompanyTypes
- [Natural Gas Brokers](/CompanyTypes/Natural_Gas_Brokers) — uses tool · CompanyTypes
- [Background Check Companies](/CompanyTypes/Background_Check_Companies) — uses tool · CompanyTypes
- [Salon and Spa Coordinator](/JobTypes/Salon_and_Spa_Coordinator) — uses tool · JobTypes
- [Care Coordination Firm](/CompanyTypes/Care_Coordination_Firm) — uses tool · CompanyTypes
- [Corporate Relocation Firm](/CompanyTypes/Corporate_Relocation_Firm) — uses tool · CompanyTypes
- [Merchant Cash Advance Broker](/CompanyTypes/Merchant_Cash_Advance_Broker) — uses tool · CompanyTypes
- [Military Base Operations Dispatcher](/JobTypes/Military_Base_Operations_Dispatcher) — uses tool · JobTypes
- [Reseller CLECs](/CompanyTypes/Reseller_CLECs) — uses tool · CompanyTypes
- [Benefits Administrator](/CompanyTypes/Benefits_Administrator) — uses tool · CompanyTypes
- [Traditional List Brokers and Managers](/CompanyTypes/Traditional_List_Brokers_and_Managers) — uses tool · CompanyTypes
- [Community Service Organization](/CompanyTypes/Community_Service_Organization) — uses tool · CompanyTypes
- [List Brokerage](/CompanyTypes/List_Brokerage) — uses tool · CompanyTypes
- [Retained Executive Search Firms](/CompanyTypes/Retained_Executive_Search_Firms) — uses tool · CompanyTypes
- [Benefits Administration Firms](/CompanyTypes/Benefits_Administration_Firms) — uses tool · CompanyTypes
- [Billing Service Provider](/CompanyTypes/Billing_Service_Provider) — uses tool · CompanyTypes
- [Benefits Broker](/CompanyTypes/Benefits_Broker) — uses tool · CompanyTypes
- [Billing Services Provider](/CompanyTypes/Billing_Services_Provider) — uses tool · CompanyTypes
- [Credentialing Services Provider](/CompanyTypes/Credentialing_Services_Provider) — uses tool · CompanyTypes
- [Benefits Administration Firm](/CompanyTypes/Benefits_Administration_Firm) — uses tool · CompanyTypes
- [Eligibility Processing Services](/CompanyTypes/Eligibility_Processing_Services) — uses tool · CompanyTypes
- [Credit Life and AD&D Specialists](/CompanyTypes/Credit_Life_and_AD&D_Specialists) — uses tool · CompanyTypes
- [Medical Front Office Service](/CompanyTypes/Medical_Front_Office_Service) — uses tool · CompanyTypes
- [Eligibility Verification Service](/CompanyTypes/Eligibility_Verification_Service) — uses tool · CompanyTypes
- [Credentialing Service](/CompanyTypes/Credentialing_Service) — uses tool · CompanyTypes
- [Traditional Political Action Committee (PAC)](/CompanyTypes/Traditional_Political_Action_Committee_(PAC)) — uses tool · CompanyTypes
- [Staffing Firm](/CompanyTypes/Staffing_Firm) — uses tool · CompanyTypes
- [Benefits Brokerage](/CompanyTypes/Benefits_Brokerage) — uses tool · CompanyTypes
- [National Dispatch Network](/CompanyTypes/National_Dispatch_Network) — uses tool · CompanyTypes
- [Asset-Light LTL Provider](/CompanyTypes/Asset-Light_LTL_Provider) — uses tool · CompanyTypes
- [Staffing Franchise Operator](/CompanyTypes/Staffing_Franchise_Operator) — uses tool · CompanyTypes
- [Domestic Truckload Broker](/CompanyTypes/Domestic_Truckload_Broker) — uses tool · CompanyTypes
- [Warranty Administration Service](/CompanyTypes/Warranty_Administration_Service) — uses tool · CompanyTypes
- [Home Services Dispatchers](/CompanyTypes/Home_Services_Dispatchers) — uses tool · CompanyTypes
- [Appointment Scheduling Service](/CompanyTypes/Appointment_Scheduling_Service) — uses tool · CompanyTypes
- [Distribution Broker](/CompanyTypes/Distribution_Broker) — uses tool · CompanyTypes
- [Asset-Light TL Carriers](/CompanyTypes/Asset-Light_TL_Carriers) — uses tool · CompanyTypes
- [Independent Retail P&C Agency](/CompanyTypes/Independent_Retail_P&C_Agency) — uses tool · CompanyTypes
- [Property Management Answering Services](/CompanyTypes/Property_Management_Answering_Services) — uses tool · CompanyTypes
- [Third-Party Contingency Agencies](/CompanyTypes/Third-Party_Contingency_Agencies) — uses tool · CompanyTypes
- [Software Reseller](/CompanyTypes/Software_Reseller) — uses tool · CompanyTypes
- [Staffing Agency](/CompanyTypes/Staffing_Agency) — uses tool · CompanyTypes
- [Rate Consulting Firm](/CompanyTypes/Rate_Consulting_Firm) — uses tool · CompanyTypes
- [Legal Receptionist](/JobTypes/Legal_Receptionist) — uses tool · JobTypes
- [Family Welfare Organizations](/CompanyTypes/Family_Welfare_Organizations) — uses tool · CompanyTypes
- [Newsprint and Groundwood Brokers](/CompanyTypes/Newsprint_and_Groundwood_Brokers) — uses tool · CompanyTypes
- [Physical Commodity Brokers](/CompanyTypes/Physical_Commodity_Brokers) — uses tool · CompanyTypes
- [Tenant Screening Agencies](/CompanyTypes/Tenant_Screening_Agencies) — uses tool · CompanyTypes
- [Subrogation and Recovery Specialists](/CompanyTypes/Subrogation_and_Recovery_Specialists) — uses tool · CompanyTypes
- [Freelance Paralegal Agency](/CompanyTypes/Freelance_Paralegal_Agency) — uses tool · CompanyTypes
- [National Broadcast Rep Firms](/CompanyTypes/National_Broadcast_Rep_Firms) — uses tool · CompanyTypes
- [Major Full-Service Talent Agency](/CompanyTypes/Major_Full-Service_Talent_Agency) — uses tool · CompanyTypes
- [Host Agencies](/CompanyTypes/Host_Agencies) — uses tool · CompanyTypes
- [Private Money Loan Broker](/CompanyTypes/Private_Money_Loan_Broker) — uses tool · CompanyTypes
- [Master Agent](/CompanyTypes/Master_Agent) — uses tool · CompanyTypes
- [Energy Brokerage](/CompanyTypes/Energy_Brokerage) — uses tool · CompanyTypes
- [Managing General Agent (MGA)](/CompanyTypes/Managing_General_Agent_(MGA)) — uses tool · CompanyTypes
- [Scheduling Services Firm](/CompanyTypes/Scheduling_Services_Firm) — uses tool · CompanyTypes
- [Concierge](/JobTypes/Concierge) — uses tool · JobTypes
- [Veterinary Receptionist](/JobTypes/Veterinary_Receptionist) — uses tool · JobTypes
- [Booking Service Provider](/CompanyTypes/Booking_Service_Provider) — uses tool · CompanyTypes
- [Public Safety Telecommunicator](/JobTypes/Public_Safety_Telecommunicator) — uses tool · JobTypes
- [Ready-Mix Concrete Dispatcher](/JobTypes/Ready-Mix_Concrete_Dispatcher) — uses tool · JobTypes
- [Consolidated PSAP Dispatcher](/JobTypes/Consolidated_PSAP_Dispatcher) — uses tool · JobTypes
- [Corporate Front Desk Receptionist](/JobTypes/Corporate_Front_Desk_Receptionist) — uses tool · JobTypes
- [University Campus Police Dispatcher](/JobTypes/University_Campus_Police_Dispatcher) — uses tool · JobTypes
- [Refugee Resettlement Agencies](/CompanyTypes/Refugee_Resettlement_Agencies) — uses tool · CompanyTypes
- [Verticalized Administrative Management Organizations](/CompanyTypes/Verticalized_Administrative_Management_Organizations) — uses tool · CompanyTypes
- [PE-Backed Regional Podiatry MSO](/CompanyTypes/PE-Backed_Regional_Podiatry_MSO) — uses tool · CompanyTypes
- [Insurance Agency](/CompanyTypes/Insurance_Agency) — uses tool · CompanyTypes
- [Waste Brokers](/CompanyTypes/Waste_Brokers) — uses tool · CompanyTypes
- [Independent Mortgage Brokerage](/CompanyTypes/Independent_Mortgage_Brokerage) — uses tool · CompanyTypes
- [Repossession Forwarding Networks](/CompanyTypes/Repossession_Forwarding_Networks) — uses tool · CompanyTypes
- [Immigration Law Firm](/CompanyTypes/Immigration_Law_Firm) — uses tool · CompanyTypes
- [Personal Injury (PI) Mill](/CompanyTypes/Personal_Injury_(PI)_Mill) — uses tool · CompanyTypes
- [PE-Backed Roll-Up Practice](/CompanyTypes/PE-Backed_Roll-Up_Practice) — uses tool · CompanyTypes
- [Virtual Receptionist Services](/CompanyTypes/Virtual_Receptionist_Services) — uses tool · CompanyTypes
- [Guaranteed Introducing Broker (GIB)](/CompanyTypes/Guaranteed_Introducing_Broker_(GIB)) — uses tool · CompanyTypes
- [Executive Contingent Search Agency](/CompanyTypes/Executive_Contingent_Search_Agency) — uses tool · CompanyTypes
- [Corporate Implants](/CompanyTypes/Corporate_Implants) — uses tool · CompanyTypes
- [Healthcare Staffing Agency](/CompanyTypes/Healthcare_Staffing_Agency) — uses tool · CompanyTypes
- [Home Warranty Dispatch Mill](/CompanyTypes/Home_Warranty_Dispatch_Mill) — uses tool · CompanyTypes
- [Healthcare Credentialing Services](/CompanyTypes/Healthcare_Credentialing_Services) — uses tool · CompanyTypes
- [Outsourced Accounts Receivable Agency](/CompanyTypes/Outsourced_Accounts_Receivable_Agency) — uses tool · CompanyTypes
- [Regional Broker-Dealers](/CompanyTypes/Regional_Broker-Dealers) — uses tool · CompanyTypes
- [Wholesale Tour Operator](/CompanyTypes/Wholesale_Tour_Operator) — uses tool · CompanyTypes
- [Factoring Company](/CompanyTypes/Factoring_Company) — uses tool · CompanyTypes
- [Regional Boutique PEOs](/CompanyTypes/Regional_Boutique_PEOs) — uses tool · CompanyTypes
- [Theatrical Booking Agencies](/CompanyTypes/Theatrical_Booking_Agencies) — uses tool · CompanyTypes
- [Insurance Audit Firm](/CompanyTypes/Insurance_Audit_Firm) — uses tool · CompanyTypes
- [Insurance Billing Service](/CompanyTypes/Insurance_Billing_Service) — uses tool · CompanyTypes
- [Front Desk Receptionist](/JobTypes/Front_Desk_Receptionist) — uses tool · JobTypes
- [Mobile Notary Network](/CompanyTypes/Mobile_Notary_Network) — uses tool · CompanyTypes
- [Independent Equipment Finance Company](/CompanyTypes/Independent_Equipment_Finance_Company) — uses tool · CompanyTypes
- [Retail Leisure Agencies](/CompanyTypes/Retail_Leisure_Agencies) — uses tool · CompanyTypes
- [Logistics and Order Processing Administrators](/CompanyTypes/Logistics_and_Order_Processing_Administrators) — uses tool · CompanyTypes
- [Front Desk Hybrid Concierge](/JobTypes/Front_Desk_Hybrid_Concierge) — uses tool · JobTypes
- [Dispatch Service Provider](/CompanyTypes/Dispatch_Service_Provider) — uses tool · CompanyTypes
- [Local Broadcast Buyer](/CompanyTypes/Local_Broadcast_Buyer) — uses tool · CompanyTypes
- [Retail Staffing Agency](/CompanyTypes/Retail_Staffing_Agency) — uses tool · CompanyTypes
- [Front Desk Reception Clerk](/JobTypes/Front_Desk_Reception_Clerk) — uses tool · JobTypes
- [Dispatch Service Bureau](/CompanyTypes/Dispatch_Service_Bureau) — uses tool · CompanyTypes
- [Law Enforcement Communications Officer](/JobTypes/Law_Enforcement_Communications_Officer) — uses tool · JobTypes
- [Music Booking Agency](/CompanyTypes/Music_Booking_Agency) — uses tool · CompanyTypes
- [Dispatch Service Providers](/CompanyTypes/Dispatch_Service_Providers) — uses tool · CompanyTypes
- [Front Desk Administrative Assistant](/JobTypes/Front_Desk_Administrative_Assistant) — uses tool · JobTypes
- [Front Office Medical Assistant](/JobTypes/Front_Office_Medical_Assistant) — uses tool · JobTypes
- [Alternative B2B Commercial Lender](/CompanyTypes/Alternative_B2B_Commercial_Lender) — uses tool · CompanyTypes
- [Front Desk Coordinator](/JobTypes/Front_Desk_Coordinator) — uses tool · JobTypes
- [PE-Backed MSO Platform](/CompanyTypes/PE-Backed_MSO_Platform) — uses tool · CompanyTypes
- [Front/Back Office Dual Assistant](/JobTypes/Front%2FBack_Office_Dual_Assistant) — uses tool · JobTypes
- [Insurance Brokerage](/CompanyTypes/Insurance_Brokerage) — uses tool · CompanyTypes
- [Insurance Brokers](/CompanyTypes/Insurance_Brokers) — uses tool · CompanyTypes
- [Alternative Business Finance Broker](/CompanyTypes/Alternative_Business_Finance_Broker) — uses tool · CompanyTypes
- [Front Desk Clerk](/JobTypes/Front_Desk_Clerk) — uses tool · JobTypes
- [Volume Recruitment Agencies](/CompanyTypes/Volume_Recruitment_Agencies) — uses tool · CompanyTypes
- [Independent Transportation Logistics Coordinators](/CompanyTypes/Independent_Transportation_Logistics_Coordinators) — uses tool · CompanyTypes
- [Local Independent P&C Agency](/CompanyTypes/Local_Independent_P&C_Agency) — uses tool · CompanyTypes
- [Equipment Finance Broker](/CompanyTypes/Equipment_Finance_Broker) — uses tool · CompanyTypes

### Related (transforms into)

- [Conference telephones](/Products/Conference_telephones) — transforms into · Products
- [Centrex phone console](/Products/Centrex_phone_console) — transforms into · Products
- [On hold players](/Products/On_hold_players) — transforms into · Products
- [Centrex phone consoles](/Products/Centrex_phone_consoles) — transforms into · Products

### Related (maintains)

- [Telephone and telephone equipment installation service](/Services/Telephone_and_telephone_equipment_installation_service) — maintains · Services

### Who uses this

- [Laborers and Freight, Stock, and Material Movers, Hand](/Occupations/Laborers_and_Freight,_Stock,_and_Material_Movers,_Hand) — uses · Occupations
- [Ambulance Drivers and Attendants, Except Emergency Medical Technicians](/Occupations/Ambulance_Drivers_and_Attendants,_Except_Emergency_Medical_Technicians) — uses · Occupations
- [Office Clerks, General](/Occupations/Office_Clerks,_General) — uses · Occupations
- [Secretaries and Administrative Assistants, Except Legal, Medical, and Executive](/Occupations/Secretaries_and_Administrative_Assistants,_Except_Legal,_Medical,_and_Executive) — uses · Occupations
- [Medical Secretaries and Administrative Assistants](/Occupations/Medical_Secretaries_and_Administrative_Assistants) — uses · Occupations
- [Legal Secretaries and Administrative Assistants](/Occupations/Legal_Secretaries_and_Administrative_Assistants) — uses · Occupations
- [Executive Secretaries and Executive Administrative Assistants](/Occupations/Executive_Secretaries_and_Executive_Administrative_Assistants) — uses · Occupations
- [Dispatchers, Except Police, Fire, and Ambulance](/Occupations/Dispatchers,_Except_Police,_Fire,_and_Ambulance) — uses · Occupations
- [Public Safety Telecommunicators](/Occupations/Public_Safety_Telecommunicators) — uses · Occupations
- [Cargo and Freight Agents](/Occupations/Cargo_and_Freight_Agents) — uses · Occupations
- [Reservation and Transportation Ticket Agents and Travel Clerks](/Occupations/Reservation_and_Transportation_Ticket_Agents_and_Travel_Clerks) — uses · Occupations
- [Receptionists and Information Clerks](/Occupations/Receptionists_and_Information_Clerks) — uses · Occupations
- [Advertising Sales Agents](/Occupations/Advertising_Sales_Agents) — uses · Occupations
- [Library Assistants, Clerical](/Occupations/Library_Assistants,_Clerical) — uses · Occupations
- [Customer Service Representatives](/Occupations/Customer_Service_Representatives) — uses · Occupations
- [Brokerage Clerks](/Occupations/Brokerage_Clerks) — uses · Occupations
- [First-Line Supervisors of Office and Administrative Support Workers](/Occupations/First-Line_Supervisors_of_Office_and_Administrative_Support_Workers) — uses · Occupations
- [Door-to-Door Sales Workers, News and Street Vendors, and Related Workers](/Occupations/Door-to-Door_Sales_Workers,_News_and_Street_Vendors,_and_Related_Workers) — uses · Occupations
- [Securities, Commodities, and Financial Services Sales Agents](/Occupations/Securities,_Commodities,_and_Financial_Services_Sales_Agents) — uses · Occupations
- [Baggage Porters and Bellhops](/Occupations/Baggage_Porters_and_Bellhops) — uses · Occupations
- [Gambling and Sports Book Writers and Runners](/Occupations/Gambling_and_Sports_Book_Writers_and_Runners) — uses · Occupations
- [First-Line Supervisors of Personal Service Workers](/Occupations/First-Line_Supervisors_of_Personal_Service_Workers) — uses · Occupations
- [First-Line Supervisors of Entertainment and Recreation Workers, Except Gambling Services](/Occupations/First-Line_Supervisors_of_Entertainment_and_Recreation_Workers,_Except_Gambling_Services) — uses · Occupations
- [First-Line Supervisors of Gambling Services Workers](/Occupations/First-Line_Supervisors_of_Gambling_Services_Workers) — uses · Occupations
- [Maids and Housekeeping Cleaners](/Occupations/Maids_and_Housekeeping_Cleaners) — uses · Occupations
- [First-Line Supervisors of Landscaping, Lawn Service, and Groundskeeping Workers](/Occupations/First-Line_Supervisors_of_Landscaping,_Lawn_Service,_and_Groundskeeping_Workers) — uses · Occupations
- [First-Line Supervisors of Housekeeping and Janitorial Workers](/Occupations/First-Line_Supervisors_of_Housekeeping_and_Janitorial_Workers) — uses · Occupations
- [Hosts and Hostesses, Restaurant, Lounge, and Coffee Shop](/Occupations/Hosts_and_Hostesses,_Restaurant,_Lounge,_and_Coffee_Shop) — uses · Occupations
- [Fast Food and Counter Workers](/Occupations/Fast_Food_and_Counter_Workers) — uses · Occupations
- [Protective Service Workers, All Other](/Occupations/Protective_Service_Workers,_All_Other) — uses · Occupations
- [Transportation Security Screeners](/Occupations/Transportation_Security_Screeners) — uses · Occupations
- [Security Guards](/Occupations/Security_Guards) — uses · Occupations
- [Gaming Surveillance Officers and Gambling Investigators](/Occupations/Gaming_Surveillance_Officers_and_Gambling_Investigators) — uses · Occupations
- [First-Line Supervisors of Police and Detectives](/Occupations/First-Line_Supervisors_of_Police_and_Detectives) — uses · Occupations
- [First-Line Supervisors of Correctional Officers](/Occupations/First-Line_Supervisors_of_Correctional_Officers) — uses · Occupations
- [Healthcare Support Workers, All Other](/Occupations/Healthcare_Support_Workers,_All_Other) — uses · Occupations
- [Veterinary Assistants and Laboratory Animal Caretakers](/Occupations/Veterinary_Assistants_and_Laboratory_Animal_Caretakers) — uses · Occupations
- [Pharmacy Aides](/Occupations/Pharmacy_Aides) — uses · Occupations
- [Medical Transcriptionists](/Occupations/Medical_Transcriptionists) — uses · Occupations
- [Occupational Therapy Aides](/Occupations/Occupational_Therapy_Aides) — uses · Occupations
- [Psychiatric Aides](/Occupations/Psychiatric_Aides) — uses · Occupations
- [Orderlies](/Occupations/Orderlies) — uses · Occupations
- [Nursing Assistants](/Occupations/Nursing_Assistants) — uses · Occupations
- [Surgical Assistants](/Occupations/Surgical_Assistants) — uses · Occupations
- [Health Information Technologists and Medical Registrars](/Occupations/Health_Information_Technologists_and_Medical_Registrars) — uses · Occupations
- [Health Technologists and Technicians, All Other](/Occupations/Health_Technologists_and_Technicians,_All_Other) — uses · Occupations
- [Medical Records Specialists](/Occupations/Medical_Records_Specialists) — uses · Occupations
- [Nurse Practitioners](/Occupations/Nurse_Practitioners) — uses · Occupations
- [Exercise Physiologists](/Occupations/Exercise_Physiologists) — uses · Occupations
- [Editors](/Occupations/Editors) — uses · Occupations
- [Public Relations Specialists](/Occupations/Public_Relations_Specialists) — uses · Occupations
- [News Analysts, Reporters, and Journalists](/Occupations/News_Analysts,_Reporters,_and_Journalists) — uses · Occupations
- [Broadcast Announcers and Radio Disc Jockeys](/Occupations/Broadcast_Announcers_and_Radio_Disc_Jockeys) — uses · Occupations
- [Producers and Directors](/Occupations/Producers_and_Directors) — uses · Occupations
- [Floral Designers](/Occupations/Floral_Designers) — uses · Occupations
- [Teaching Assistants, Postsecondary](/Occupations/Teaching_Assistants,_Postsecondary) — uses · Occupations
- [Instructional Coordinators](/Occupations/Instructional_Coordinators) — uses · Occupations
- [Library Technicians](/Occupations/Library_Technicians) — uses · Occupations
- [Librarians and Media Collections Specialists](/Occupations/Librarians_and_Media_Collections_Specialists) — uses · Occupations
- [Tutors](/Occupations/Tutors) — uses · Occupations
- [Career/Technical Education Teachers, Secondary School](/Occupations/Career%2FTechnical_Education_Teachers,_Secondary_School) — uses · Occupations
- [Career/Technical Education Teachers, Middle School](/Occupations/Career%2FTechnical_Education_Teachers,_Middle_School) — uses · Occupations
- [Career/Technical Education Teachers, Postsecondary](/Occupations/Career%2FTechnical_Education_Teachers,_Postsecondary) — uses · Occupations
- [Recreation and Fitness Studies Teachers, Postsecondary](/Occupations/Recreation_and_Fitness_Studies_Teachers,_Postsecondary) — uses · Occupations
- [Family and Consumer Sciences Teachers, Postsecondary](/Occupations/Family_and_Consumer_Sciences_Teachers,_Postsecondary) — uses · Occupations

### Requires input

- [Copper Sheet Laminate](/Products/Copper_Sheet_Laminate) — requires input · Products
- [Twisted-Pair Cable](/Products/Twisted-Pair_Cable) — requires input · Products
- [Abs Plastic](/Products/Abs_Plastic) — requires input · Products

### Warranted by

- [Equipment Warranty](/Services/Equipment_Warranty) — warranted by · Services

### Delivered as

- [Hosted Telephony Service](/Services/Hosted_Telephony_Service) — delivered as · Services

### Input to

- [Installing Telephone Systems](/Processes/Installing_Telephone_Systems) — input to · Processes

### Output of

- [Electronic Assembly](/Processes/Electronic_Assembly) — output of · Processes

### Transforms into

- [Private branch exchange PBX equipment](/Products/Private_branch_exchange_PBX_equipment) — transforms into · Products
- [Office Communications System](/Products/Office_Communications_System) — transforms into · Products

### Assembled from

- [Control Chassis](/Products/Control_Chassis) — assembled from · Products
- [Telephone Handset Assembly](/Products/Telephone_Handset_Assembly) — assembled from · Products

### Rolled up to product class

- [Personal communication devices](/Products/Personal_communication_devices) — rolled up to product class · Products

### Composed of

- [Printed wire boards](/Products/Printed_wire_boards) — composed of · Products
- [Switch ports or cards](/Products/Switch_ports_or_cards) — composed of · Products
- [Desk Handsets](/Products/Desk_Handsets) — composed of · Products
- [Direct current DC power supplies](/Products/Direct_current_DC_power_supplies) — composed of · Products
- [Station Wiring Cable](/Products/Station_Wiring_Cable) — composed of · Products
- [Key Service Unit](/Products/Key_Service_Unit) — composed of · Products

### Produced with

- [Smt Pick And Place Machine](/Products/Smt_Pick_And_Place_Machine) — produced with · Products
- [Solder reflow ovens](/Products/Solder_reflow_ovens) — produced with · Products

### Problems this exposes

- [legacy PBX-to-VoIP migration on multi-line desk sets](/Problems/legacy_PBX-to-VoIP_migration_on_multi-line_desk_sets) — exposes problem · Problems
- [line-key programming across many handsets](/Problems/line-key_programming_across_many_handsets) — exposes problem · Problems
- [call-routing and hunt-group configuration complexity](/Problems/call-routing_and_hunt-group_configuration_complexity) — exposes problem · Problems

### Measured by

- [Audio Quality Rating](/Metrics/Audio_Quality_Rating) — measured by · Metrics
- [Extension Count](/Metrics/Extension_Count) — measured by · Metrics
- [Line Capacity Count](/Metrics/Line_Capacity_Count) — measured by · Metrics

### Runs software

- [Telephone System Firmware](/Software/Telephone_System_Firmware) — runs software · Software

### Financed by

- [Equipment Leasing](/Services/Equipment_Leasing) — financed by · Services

### Consumes

- [Electrical Connectors](/Products/Electrical_Connectors) — consumes · Products
- [Solder](/Products/Solder) — consumes · Products

### Packaged in

- [Cardboard Shipping Carton](/Products/Cardboard_Shipping_Carton) — packaged in · Products