Glossary for SIP Extension Settings

This reference describes all settings on a SIP extension.

Basic Settings

Navigation path: Settings > PBX > Extensions, select and edit a SIP extension on the Basic tab.

General Settings

SettingsDescriptions
ExtensionEnter the extension number.
Caller IDIf you set the caller ID number, the called party will see this caller ID number when the extension user makes an outgoing call.
Registration NameThe name used to register a SIP extension.
Caller ID nameIf you set the caller ID name, the called party will see this caller ID name when the extension user makes an outgoing call.
Concurrent RegistrationsYeastar Cloud PBX supports to register one extension number on multiple phones. When a call reaches the extension number, all phones will ring.
Registration PasswordThe password is used to register a SIP extension. The password is generated randomly by default.

User Information Settings

SettingsDescriptions
EmailEnter the email address. Extension user can reset his/her login password, receive voice mails, faxes, or PBX notifications via this email address.
User PasswordThe password is used to log in the PBX or log in Linkus mobile client. The password is generated randomly by default.
Prompt LanguageThe language of voice prompts. The default prompt language is the same as the system language. If the extension user speaks foreign language, you can set a specific system prompt.
Mobile NumberEnter the mobile number. Extension user can receive the PBX notifications or forwarded calls on this mobile number.

Presence Settings

Extension Presence indicates the availability status of a SIP extension. Presence settings are linked to the Call Forwarding rules and Linkus ring strategy. You can set different call forwarding rules and ring strategy for each presence status.

Navigation path: Settings > PBX > Extensions, select and edit a SIP extension under the Presence tab.

Presence Settings

SettingsDescription
PresenceSet presence status.Yeastar Cloud PBX provides five presence statuses.Available: You are online and ready for communication.Away: You are currently away from your office.DND: You don’t want to be disturbed, and you won’t receive any calls.Lunch Break: You are currently on lunch break.On a Business Trip:You are currently on a business trip.
Presence InformationAdd details about your current status.

Call Forwarding Settings

You can forward calls to a specific destination or a specific extension user to avoid missing calls. Depending on the presence status and your preferences, you can set the PBX to forward calls to voicemail, extension, mobile number, queue, etc.

SettingsDescription
AlwaysForward all calls to the designated destination.
No AnswerOnly forward the unanswered calls to the designated destination.
When BusyOnly forward the calls that come in while you are talking on the phone.

Ring Strategy Settings

You can set ring strategy for the following terminals that the SIP extension registered to.

  • Extension
  • Linkus Mobile Client
  • Linkus Desktop Client
SettingsDescription
Ring FirstSet which terminal will ring first.
Ring SecondlySet which terminal will ring secondly.

Features Settings

You can configure voicemail, mobility extension, call monitoring, and other settings under the Features tab.

Navigation path: Settings > PBX > Extensions, select and edit a SIP extension under the Features tab.

Voicemail Settings

SettingsDescription
Enable VoicemailEnable voicemail feature.
Voicemail Access PINPassword used to access voicemail.
Share Voicemail StatusEnable this option to share voicemail status of this extension with other extensions.
Send Voicemail to EmailWhether to send voicemail to the designated Email address or not.Disabled: Do not send voicemail to the designated Email address.Send to user’s mail: Send voicemail to the email address of the extension user.Send to custom mail: Customize an email address, and the PBX will send the voicemail to the designated Email address.
Busy PromptSet the prompt that will be played when the extension user is busy in a call.
Unavailable PromptSet the prompt that will be played when the extension user is unavailable.

Mobility Extension

Yeastar Mobility Extension allows you to stay in contact with colleagues and clients using either office phone or mobile phone with the same extension number.

SettingsDescription
Ring SimultaneouslyEnable this option to allow both extension and associated mobile number ring simultaneously when anyone calls in the extension number.
Enable Mobility ExtensionEnable this option to allow your mobile number have the same permission as the office phone when you use associated mobile number to call in the PBX.
Mobility ExtensionSet Mobile Number: Set the associated mobile number.Prefix: Set the prefix of the mobile number according to the outbound route.

Monitor Settings

Call Monitoring allows authorized users to monitor another extension user’s call in real time.

SettingsDescription
Allow Being MonitoredEnable this option to allow anyone to monitor the extension user’s ongoing call.
Monitor ModeDecide how you monitor other extension users’ ongoing call.DisabledYou can not monitor other extension users’ ongoing call.ExtensiveUse any one of listen, whisper, or barge-in mode to monitor other extension user’s ongoing call.ListenListen to a call in real time, but you can not talk with the monitored extension users.WhisperListen to a call in real time, and talk with the monitored extension users privately.Barge-inListen to a call in real time and talk with both parties.

Other Settings

SettingsDescription
Ring Timeout (s)Set the timeout in seconds. Phone will stop ringing after timeout.
Max Call Duration (s)Set the maximum call duration in seconds for every call of this extension.Note:The precedence of Max Call Duration(s) (Global v.s. Extension):For internal calls: The Max Call Duration(s) setting of the caller’s extension takes precedence.For outbound calls: The Max Call Duration(s) setting of the caller’s extension takes precedence.For inbound calls: The global Max Call Duration(s) setting takes precedence.
Send email notification when extension user password is changedEnable this option to send email notification when extension user password is changed.

Advanced Settings

The advanced settings of SIP extension require professional knowledge of SIP protocol. Incorrect configurations may cause calling issues. It is wise to retain the default settings provided on the SIP extension page. However, for a few fields, you need to change them to suit your situation.

Navigation path: Settings > PBX > Extensions, edit an extension under the Advanced tab.

VoIP Settings

SettingsDescription
QualifyEnable this option to send SIP OPTION packet to SIP device to check if the device is up.
Enable SRTPEnable SRTP for voice encryption.
T.38 SupportEnable or disable T.38 fax for the extension.
DTMF ModeSet the default mode for sending DTMF tones.RFC4733 (RFC2833): DTMF will be carried in the RTP stream in different RTP packets.Info: DTMF will be carried in the SIP info messages.Inband: DTMF will be carried in the audio signal.Auto: The PBX will detect if the device supports RFC4733(RFC2833) DTMF. If RFC4733(RFC2833) is supported, PBX will choose RFC4733(RFC2833), or the PBX will choose Inband.
TransportSet the transport protocol.UDPTCPTLS

Enable User Agent Registration Authorization

SettingsDescription
Enable User Agent Registration AuthorizationWhether to restrict user agents from registering to the extension.
User AgentEnter the name of user agent. If the prefix of the user agent does not match the value, the registration will fail.

IP Restriction

SettingsDescription
Enable IP RestrictionThis option is used for IP access control. Only the IP address or IP section that matches the settings can register the extension number.
Permitted IP/Subnet maskEnter the IP address and subnet mask.192.168.5.100/255.255.255.255In this example, only the device whose IP address is 192.168.5.100 can register the extension number.192.168.5.0/255.255.255.0In this example, only the devices whose IP section is 192.168.5.0 can register the extension number.

Call Permission Settings

You can set the outbound call permissions for the SIP extension.

Navigation path: Settings > PBX > Extensions, select and edit a SIP extension under the Call Permission tab.

SettingsDescription
Outbound RoutesSet outbound routes for the extension.
Outbound RestrictionEnable this option to prohibit this extension from making outbound calls.

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