Skip to end of metadata
Go to start of metadata

This article describes and discusses the various Go app settings and their effects specific to the Android version. Settings and options may vary between mobile OS versions, so please refer to the page that corresponds to the device NocTel Go is installed on.

Take note: The settings described here presume you have consented and allowed all the mobile device permissions Go requests. If you denied any of the app permissions requested, some of these settings may not do anything.

Incoming Calls:

  • Push Notifications: Go will display notifications on your device as a banners, in the Notification Center, and/or on the Lock Screen when an event occurs.
  • Off: Go will not display notifications on your device.


  • Select from variety of built-in ring tones. Android users can specify Use global setting to use the device default ringtone used by the device's native Phone app, or alternatively add a ringtone from audio file stored on the device.

Sound Settings:

  • Echo Suppression: uses the device's microphone to reduce echo that may occur on the call overall.
  • Noise Suppression: not to be confused with echo suppression, noise suppression works to reduce ambient background noise or murmur from being picked up on the call.
  • Playback Boost: adds volume boost to call audio and recordings such as voicemail. Be careful to not set this too high with naturally high volume speakers or recordings as clipping may occur.
  • Microphone Level: adds volume boost to microphone audio level when on call on speakerphone, handset, and headset modes. Be careful to not set this too high if speaking loudly as it may cause clipping that will be unpleasant to the other end of the call.
  • Keypad Volume: the relative loudness of keypad tones when pressed in the Go app.
  • Automatic Speaker Mode:
    • Off - never dynamically switch to speakerphone on calls.
    • Video Calls - currently not supported. Dynamically switch from handset mode for talking for Video Calls when the device is moved away from your ear.
    • On - always dynamically switch to speakerphone for all calls.
  • Speaker On Display Down: when toggled On will switch the talking mode of the mobile device to speakerphone when placed on a surface from handset mode. This only functions if your mobile device has an accelerometer. Set this to Off if you do not with for NocTel Go to try to switch to speakerphone based on physical gestures.
  • Automatic Speaker Mode:
    • Off - never dynamically switch to speakerphone on calls.
    • Video Calls - currently not supported. Dynamically switch from handset mode for talking for Video Calls when the device is moved away from your ear.
    • On - always dynamically switch to speakerphone for all calls.
  • Audio Processing Configuration:
    • System Audio Processing - leverages your mobile device's built-in echo and background noise suppression capabilities only. This does not add additional audio processing overhead and will have minimal effect on call quality to address echo and background noise.
    • In-App Audio Processing - leverages NocTel Go's echo and background noise suppression to process audio in real-time to reduce echo and background noise. This results in better audio quality, but can affect call quality (audio delays, audio cutting out, etc.) depending on how powerful your mobile device is. 
  • Advanced Sound Settings: we do not recommend changing this settings on a whim.
    • Sampling Rate - setting affects the native audio sampling rate, which fundamentally affects call quality on call and in recordings.
    • Recording Preset - setting affects how Android processes call audio when creating call recordings. Do not change this setting from its Default value unless you have familiarity with the audio processing handlers.
    • Playback Block Size - specifies the time chunking size to process audio in during playback. This affects not only audio playback for things like recordings on your mobile device, but also how it is processed in live calls. Modifying this without good understanding of your connectivity can result in very unstable calls.
    • Enable Playback Buffering - automatically, always, or never performs audio buffering to allow smoother audio playback. If the Sampling Rate is set higher than 16000 Hz, this may be necessary.
    • Playback Buffer Size - specifies the timeframe to buffer audio for.

Call Recording Settings:

  • Record All Calls: toggled Off by default. It is not recommended to turn this on as state and international informed consent laws may require a two party disclosure and consent to record calls. It is recommended to record calls on-demand on a call by call basis if necessary.
  • Output File Format: 
    • WAV μ-law (Default) - reasonable recording fidelity that produces a small output size. This format is generally sufficient. Produces a .wav format file.
    • WAV PCM16 - a higher fidelity format than μ-law. Produces a .wav format file.
    • Ogg Opus - highest quality format calls can be recorded to in NocTel Go. Very long conversations recorded may get significantly sized. Please be mindful of your device's current available storage before using this option. Produces a .ogg format file, which not all media players may natively support.
  • Delete After: specifies how long to keep call recordings created by NocTel Go for before they are automatically deleted. Because the recordings are stored locally to your mobile device, NocTel cannot assist you in recovering deleted recordings on your NocTel Go extension.
  • Warning Beep: will play an audible beep during calls that are recorded to remind/inform the call is being recorded.
  • Email Address: the email address to pre-populate when sending locally stored call recordings from NocTel Go via email.
  • Recording Storage:
    • Internal - will store call recordings to the local device in a NocTel Go data directory that is not natively accessible by other apps. File explorer apps can browse to this directory and interact with the recording files.
    • External - will store call recordings to the local device's external storage device, typically a micro SD card. The call recording files are stored in a directory that can be accessed by other apps other than NocTel Go natively.
    • Custom - will store call recordings to the directory specified. Ensure this directory actually exists and is accessible by NocTel Go before using this option.

Network Settings:

  • Allowed SSIDs: a comma separated list of SSID (Wireless network) names that NocTel Go will connect to and communicate over. An empty list allows all wireless networks. 
  • Disallowed SSIDs: a comma separated list of SSID (Wireless network) names that NocTel Go will not connect to and communicate over. An empty list disallow no wireless networks. This setting and the corresponding Allowed SSIDs should only be used if there are known good or problematic wireless networks with your mobile device.
  • Network Priorities for RTP: RTP is the protocol used to handle call audio data over VoIP. When RTP data is unstable such as poor connection or congestion, it can lead to many of the audio quality problems that are commonly encountered.
    • Prefer Wi-Fi - NocTel Go will always use your mobile device's WiFi connection, if connected and available.
    • Prefer Mobile Data - NocTel Go will always use your mobile device's wireless carrier connection such as 4G or LTE, if connected and available. Be aware this will result in data usage relative to the amount of talk time on your device's associated NocTel Go extension. If you are using NocTel Go on a personal device we recommend always using the Prefer Wi-Fi option as Mobile Data usage could incur overage fees with your mobile carrier.
  • Prevent Wi-Fi From Sleeping: when toggled On, NocTel Go prevents your mobile device from entering a full hibernate/sleep in which WiFi is suspended. This does not incur a high battery consumption penalty by keeping the setting On.

Control Settings:

  • Call Integration: only applicable if GSM calls are enabled.
    • Default - NocTel Go calls will interoperate with GSM calls (through your mobile carrier on the number(s) bound to the device through its SIM card). Android may automatically reject new calls that arrive via other apps if there is already an active call in another app. This may result in calls being received on the bound phone number to the device being rejected if there is an active Go extension call. The opposite may occur as well.
    • Use System Dialer Integration - allows calls from and to apps on your mobile device to be controlled and dictated by the Android native dialer. This allows you to specify which app should handle incoming and outgoing calls with to an extent.
  • Ringer Behavior on Call: specifies how you should be notified if another call arrives while already in an active call with NocTel Go.
  • Play Music On Hold: when toggled On and a compatible audio file is specified, the audio file selected will play on the other end when they are placed on hold from your Go extension. Note that this is specific only to the Go extension and not a NocTel Talk setting in the control panel.
  • Show Persistent Notification: when toggled On notifications will persistent until no longer valid, such as new voicemail push notification.
  • Always Show Voicemail Button: when toggled On the Voicemail button in the dialer view will always be present even if there are no new voicemails.

Do Not Disturb Settings:

  • NocTel Go specific DND rules are created here that dictate whether the extension will ring or not based  on the defined schedule. Exceptions can be made to allow certain contacts to ring through while squelching all others.

Contact Settings:

  • Sort Order: dictates how your contacts are sorted in NocTel Go specifically. This can be done on a First Name or Last Name basis.

Other Settings:

  • Start Application After Boot: when toggled On your mobile device will automatically start NocTel Go after reboot or powering on.
  • Use Proximity Sensor: when toggled On, NocTel Go will use your mobile device's proximity sensor to lock and unlock the device's screen when on an active call. This feature does nothing if your device does not have a proximity sensor.

Logging Settings:

  • Troubleshooting Log: toggling On will allow NocTel Go to take SIP captures that assist in the debug of failed calls or calls with poor call quality. It is recommended to leave this setting to Off and to enable it only after you have encountered a problem. Reproducing the problem with SIP logging enabled will assist NocTel Support in debugging your issue.

Language Settings:

  • App Language: When set to Automatic NocTel Go will use the language associated with your device's region setting. Otherwise you may select a supported language explicitly here. At this time NocTel Go only supports English.
  • No labels