CHAPTER7 Troubleshooting
C455HD | Users & Administrator's Manual
DSP recording can be deactivated on the fly without requiring the network admin-
istrator to reset the phone.
SSH
ThephonecanbeaccessedviaSecureShell(SSH)cryptographicnetworkprotocolafterthe
networkadministratorsignsin.
SSH is by default disabled and can be enabled with Administrator permissions in the
phone screen (Device Administration > Debugging > SSH).
Tosignin,theadministratorneedstoknowtheirusernameandpassword;adminand1234are
thedefaults.SSHaccessallowsadministratorsdebuggingcapabilitiessuchas:
■ GettingthePhoneIPAddressbelow
■ Pullingfilesfromthephonesdcard(usingthecurlcommand)
■ ActivatingDSPRecordingonpage106
■ DeactivatingDSPRecordingonthepreviouspage
■ InstallingtheTeamsAPK(orAnyOtherAPK)usingSSHbelow
Getting the Phone IP Address
Networkadministratorscangetaphone'sIPaddressusingSSHprotocol.
➢ To get the phone's IP address using SSH protocol, type the following at the shell prompt:
su
ifconfig
Installing the Teams APK (or Any Other APK) using SSH
NetworkadministratorscaninstalltheMicrosoftTeamsAndroidApplicationPackage(orany
otherAPK)usingSSHprotocol.Here'sanexampleofhowtoreplacetheMicrosoftTeamsapplic-
ationversion.
➢ To replace the Microsoft Teams application version:
1. Uploadthe.apkfiletothephone
curl http://<ip_address>/Microsoft-Teams-xxx.apk > /data/teams.apk
2. Installthe.apk
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