About This Document; Target Group; Prerequisites - ASCOM Myco 3 Troubleshooting Manual

TROUBLESHOOTING GUIDE
Ascom Myco 3
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About This Document

This guide describes procedures to validate and perform troubleshooting for Ascom Myco 3 handsets. It
identifies some of the more common problem areas, and suggests approaches to troubleshooting and
investigating these problems. The guide contains detailed information about the behavior of the Ascom
Myco 3 under faulty or problematic conditions.
This version of the document provides troubleshooting procedures for Ascom Myco 3 devices running the
latest released software. Some information in this version of the document might be not applicable to the
earlier software releases, therefore it is recommended to use the latest software version (v2.X.X or later) to
get up-to-date information from this document.
This document describes features and settings for the following handset versions of Ascom Myco 3:
• Ascom Myco 3 Wi-Fi and Cellular
• Ascom Myco 3 Wi-Fi
• Ascom Myco 3 Wi-Fi and Cellular EU
• Ascom Myco 3 Wi-Fi EU
Ascom Myco 3 is referred to as the "handset" or the "device" in the manual, and can be specifically marked
with "Wi-Fi only" or "Cellular only" whenever the functionality differs between the handset versions.
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Target Group

This document provides system administrators responsible for management and maintenance of Ascom
Myco 3 handsets with guidance about the types of problems that may occur during configuration and usage
of the devices. This guide explains the probable causes of these problems and suggests actions along with
a list of diagnostic and troubleshooting tools necessary to retrieve the existing issues.
This guide is also written with a focus on support network administrators responsible for troubleshooting
and supporting customer Voice over Wireless Fidelity (VoWiFi) systems, and the Wireless Local Area
Networks (WLANs) that support such systems. The guide may also be of considerable use to system
administrators and network planners intending to design, implement, deploy and commission a new WLAN
designed for VoWiFi access, or upgrade an existing WLAN to support a new VoWiFi system.
Many of the problems described in this guide arise because of poor provisioning and planning. In this
respect, system administrators and network planners are recommended to read the document Ascom
VoWiFi System, System planning, TD 93358EN.
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Prerequisites

To gain the maximum benefit from this guide, readers should have the following:
Software
• The latest software version installed on the handset(s).
Knowledge and Experience
• How WLAN and Cellular networks function.
• Sufficient knowledge in networking concepts.
• A basic understanding of Voice over Internet Protocol (VoIP) and the VoIP Session Initiation Protocol (SIP).
• Have read Configuration Manual, Ascom Myco 3, TD 93309EN.
TD 93297EN / 19 December 2019 / Ver. B
About This Document
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