VOIP Handset Calibration and Acoustic Location
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Solution Overview
Problem
In call centers, the indiscriminate ringing of multiple handsets creates confusion and discomfort due to loud noises, and locating a specific handset among many is difficult and time-consuming for technicians.
Innovation Solution
An automated handset calibration and location system using VOIP software and microphone inputs adjusts the volume of handsets until it falls within a desired range, and combines this with a centralized server to remotely control volume settings and locate handsets using sound signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple handsets are placed within a closed locality, then handset availability is improved, but noise levels increase creating confusion and discomfort
Solution Approach 1:
The system performs preliminary calibration of each handset's volume level before normal operation begins. By measuring the ringtone volume of each handset and adjusting it to a desired level in advance, the system prevents excessive noise during actual use, resolving the contradiction between having multiple handsets available and maintaining acceptable noise levels.
2Area of stationary object
If multiple handsets are placed close to one another, then space utilization is improved, but locating a specific handset becomes difficult and time-consuming
Solution Approach 1:
The system uses acoustic feedback by measuring the ringtone volume produced by each handset and using this information to determine handset locations. The centralized server receives volume measurements from microphones and processes this feedback to calculate distances and locate handsets, enabling rapid identification without manual searching through the crowded space.
Solution Approach 2:
The centralized server acts as an intermediary between the handsets and the technician. It receives acoustic measurements from microphones, processes the data to determine handset positions, and provides location information to the technician, eliminating the need for the technician to manually search through the crowded area.
3Reliability
If handset volume is increased to be heard clearly, then communication quality is improved, but noise levels increase creating discomfort amongst users
Solution Approach 1:
The system applies different volume levels to different handsets based on their individual calibration measurements. Each handset is adjusted to its optimal volume level rather than using a uniform high volume for all handsets, allowing clear communication while minimizing overall noise levels in the environment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces noise levels to a comfortable range and enables precise handset location within a call center, improving user comfort and efficiency in handset management.
Implementation Method 1
receiving a volume value of the first ringtone measured with a microphone
Implementation Method 2
determining a distance between the client device and the first handset based on the volume level
Data Source
AI summary
A method that includes selecting a first handset from multiple handsets in a locality and instructing the first handset to generate a first ringtone is provided. The method also includes receiving a volume value of the first ringtone measured with a microphone, adjusting, in the first handset, a volume level for the first ringtone based on a desired volume level, and providing a notification to the first handset that the volume level of the first handset has been calibrated. A system and a non-transitory, computer-readable medium storing instructions to perform the above method are also included.