This error means that the phone did not receive a reply from the server(or there is no connectivity with it) and is common with new installation...
Last Modified: 2018-12-20 15:55:28
Introduction:
This tutorial is about bad quality audio. For complete lack of audio in one or both directions, please refer to the missing audio tutor...
Last Modified: 2017-01-18 16:05:50
iOS and Android:
As general workaround for those issues, we recommend that you enable the "PUSH" service.
The Zoiper PUSH ...
Last Modified: 2018-11-16 16:34:29
Introduction:
Issues related to incoming calls are a common problem with voice over IP.
This article aims to outline the most common problems for th...
Last Modified: 2017-10-11 18:15:47
This error may have few different meanings depending on the entire error message.
Typically it might be because the DNS server does not reply at time...
Last Modified: 2023-09-07 12:24:43
SIP 403 is shown when the server understands your request, but is refusing to fulfill it. You will need to contact your VoIP service provider or PBX a...
Last Modified: 2017-02-13 18:31:03
This issue appears mostly because the session was not actually established and is in most cases network(NAT) related. For example when you receive a c...
Last Modified: 2024-04-16 13:26:11
SIP 401 - Unauthorized usually means that the request requires user authentication.
This error message is returned by the SIP server, o...
Last Modified: 2017-02-09 17:36:03
Windows:
The Zoiper installer for Windows contains both a 32 bit build and a 64 bit build.
The 32 bit version will wor...
Last Modified: 2017-02-15 16:01:23
Error SIP 603 is usually returned as a response when the called party was successfully contacted, but can not or does not wish to participate. This er...
Last Modified: 2017-02-10 14:07:04
When using Asterisk, you might see warning messages in the logfile or on the CLI "Unknown RTP codec 95 error".
You can safely ignore these messages, ...
Last Modified: 2017-02-06 10:55:13
With Huawei devices and Android above version 8+, to allow Zoiper to work on background even when the PUSH service is enabled, you need to do the foll...
Last Modified: 2018-11-27 12:19:26
Mac:
http://superuser.com/questions/548119/how-do-i-configure-custom-url-handlers-on-os-x
From the follow the link to download R...
Last Modified: 2017-03-06 16:23:52
This error shows that the Zoiper process has stopped working and Windows is displaying it.
This issue can be caused by some antivirus applicati...
Last Modified: 2017-02-10 15:19:19
The error message "SIP 923 / No DNS results / Service or option unavailable" is usually shown when:
the server information is not provided ...
Last Modified: 2017-10-03 15:39:18
SIP 404 - Not found. error means that the server could not find the extension (or number) you have dialed through the softphone.
This is usua...
Last Modified: 2017-02-09 18:28:14
If this error occurs at registration time, please ask your provider for assistance. It means they are rejecting the registration for unknown reasons.
...
Last Modified: 2017-02-05 13:33:37
Chat and Presence
To use IM and presence your SIP server / provider must support it as well.Zoiper uses SIP "MESSAGE" messages for the chat s...
Last Modified: 2017-09-29 16:29:40
Phantom calls from unknown numbers (100, 1000, 101, 1, 1005 ...) are usually from SIP scanners/ scammers and are called "ghost calls".
If you...
Last Modified: 2017-05-05 16:36:35
Windows, Mac and Linux:
Make sure first that you are using the proper number pad.
Zoiper5 comes with two number pads, on...
Last Modified: 2017-10-27 14:10:54
Zoiper officially supports Bluetooth devices that use only the SC0(mono) BT profile.
Note, the Bluetooth support in Zoiper is currently listed as Bet...
Last Modified: 2017-05-17 16:57:26
When the operating system notifies Zoiper that there is a network change, Zoiper shows a popup and will take the necessary actions to let the server k...
Last Modified: 2017-02-06 10:51:57
All versions of Zoiper are scanned for viruses before we upload them to our website, Google Play, iTunes or the Windows Store.
For your safety, pleas...
Last Modified: 2016-12-25 10:33:27
The Zoiper window can appear "transparent" whenever the color depth of the display is set to 16-bit or when you are using RDP with quality options tha...
Last Modified: 2017-01-12 16:40:20
Chat and Presence
To use IM and presence your SIP server / provider must support it as well.Zoiper uses SIP "MESSAGE" messages for the chat session h...
Last Modified: 2017-10-12 13:02:23
Windows:
Zoiper saves its contacts file in 'C:\Users\your username\AppData\Roaming\Zoiper'.
Make sure that the current W...
Last Modified: 2017-02-10 15:21:11
If you are experiencing issues with the initial Zoiper installation, this might be due to your antivirus software or file corruption.
You may receive...
Last Modified: 2017-10-24 15:40:08
Zoiper 1.x will show multiple entries for one contact if that contact has multiple phones numbers (e.g. one for mobile, one for work, one for home etc...
Last Modified: 2017-02-07 14:28:56
Android:
Zoiper 1.x for Android does not support landscape mode.
Zoiper 2.x for Android supports landscape mode. You ...
Last Modified: 2017-02-07 14:34:40
This issue is a known issue, it is fixed in Zoiper 3 version 3.15
Please upgrade to this latest version if you are experiencing this problem.
Last Modified: 2017-02-07 17:58:28
Zoiper does not playback voice messages on errors. If you do hear a voice message, the account settings in Zoiper are most likely fine, but somet...
Last Modified: 2016-12-13 16:22:44
The download links which you have received when you purchased Zoiper automatically expire after 15 days.
You can get the latest download links&n...
Last Modified: 2017-02-10 15:26:38
Please follow this help document if you are unable to download Zoiper for desktop with Google Chrome:
Last Modified: 2017-02-07 14:35:48
Please upgrade to the latest version of Zoiper for iPhone.
If that does not resolve the issue, please contact us on support@zoiper.com
Last Modified: 2017-02-07 15:08:04
The SIP 407 "Proxy authentication required"/ "Bearer capability not authorized" - the client should first authenticate with a proxy server.
Usua...
Last Modified: 2017-10-03 15:42:43
The "SIP 400" error comes from your VoIP server for some reason, and usually means "Bad request".
This error might appears if there is a proble...
Last Modified: 2017-09-29 16:20:19
When Zoiper cannot display the preview of the camera and there is a "broken image" icon on the top right corner of the preview window, it's most ...
Last Modified: 2017-10-12 14:42:25
The most common cases where Zoiper will not respond to clicks on your headsets answer or hang buttons are:
1. The Jabra HID option is Zoiper5...
Last Modified: 2019-04-29 14:00:00
If you are experiencing issues starting Zoiper on MS Windows you should always first check the configuration of your security software.
For exam...
Last Modified: 2017-10-26 14:22:51
Failed to create media streams (code: 29)
This error message, usually indicates that Zoiper cannot negotiate/ create the media streams for so...
Last Modified: 2022-08-23 16:57:38
Some of the Chinese phone manufacturers have very aggressive power management policies to maximize the battery life, however this leads to lack o...
Last Modified: 2019-08-12 19:10:28
Regarding only Zoiper for iOS released after 3.25.2, previous versions are not affected.
Due to an update from Apple regarding handling of Pu...
Last Modified: 2020-03-19 14:48:36
With iOS above version 10, some users might notice that their Zoiper is in a language which they do not use on their iPhones, e.g. Russian, while the ...
Last Modified: 2020-02-07 17:23:41
For some time we have been investigating an issue where Zoiper might be unable to register unless the phone is rebooted after change to Wi-Fi or the W...
Last Modified: 2019-10-17 16:07:31
For reliable activation through the Zoiper VDI (Activation Provider) on MS Azure, "accelerated networking" must be enabled.
We are not entirely sure ...
Last Modified: 2023-09-01 11:44:50