VoIP Status
VoIP Status Screen
Click System Monitor > VoIP Status to open the following screen. You can view the Voice over IP (VoIP) registration, current call status and phone numbers in this screen.
System Monitor > VoIP Status
The following table describes the labels in this screen.
System Monitor > VoIP Status 
Label
Description
Poll Interval
Enter the number of seconds the Device needs to wait before updating this screen and then click Set Interval. Click Stop to have the Device stop updating this screen.
SIP Status
Account
This column displays each SIP account in the Device.
Register Action
Click on this switch to register/unregister the SIP account. This switch will turn blue if a registration attempt is successful; otherwise, it will revert to its unregistered setting. Unregistering an account does not delete the SIP account itself, but removes the mapping between your SIP identity and your IP address or domain name,
Registration
This field displays the current registration status of the SIP account.
Registered - The SIP account is activated and has been registered with a SIP server. You can use it to make a VoIP call.
Unregistered - The SIP account is activated, but the last time the Zyxel Device tried to register the SIP account with the SIP server, the attempt failed. Use the Register Action switch to register the account again. The Zyxel Device will also automatically try to register the SIP account again after a period of time that you configured in VoIP > SIP > SIP Service Provider > Add/Edit > SIP Register Fail Re-Try Timer.
Disabled - The SIP account is not active. Make sure the corresponding SIP Service Provider and SIP Account are both enabled in VoIP > SIP > SIP Service Provider > Add/Edit and VoIP > SIP > SIP Account > Add/Edit.
Registration Time
This field displays the last time the Device successfully registered the SIP account. The field is blank if the Device has never successfully registered this account.
URI
This field displays the account number and service domain of the SIP account. You can change these in the VoIP > SIP screen.
Message Waiting
This field indicates whether or not there are any messages waiting for the SIP account.
Last Incoming Number
This field displays the last number that called the SIP account. The field is blank if no number has ever dialed the SIP account.
Last Outgoing Number
This field displays the last number the SIP account called. The field is blank if the SIP account has never dialed a number.
Call Status
Account
This column displays each SIP account in the Device.
Duration
This field displays how long the current call has lasted.
Status
This field displays the current state of the phone call.
Idle – There are no current VoIP calls, incoming calls or outgoing calls being made.
Dial – The callee's phone is ringing.
Ring – The phone is ringing for an incoming VoIP call.
Process – There is a VoIP call in progress.
DISC – The callee's line is busy, the callee hung up or your phone was left off the hook.
Call Type
This field displays the call direction type of the current VoIP call. Outgoing Call – It is a SIP VoIP call made by local phone ports, and this SIP account is able to issue a (SIP-based) call setup to the SIP account of remote peers for a VoIP call establishment. This (SIP-based) call setup signal is sent to the SIP server first, and then the SIP server would relay it to the target peer after correctly resolving and locating the target peer. During the call setup (signaling) phase, Calling state is displayed in the Status field, and it turns to InCall state once the call is successfully established.
Incoming Call – It is a SIP VoIP call made or originated by remote SIP accounts to connect to this local SIP account. One or more local phone ports can be configured to receive this type of call, see the Incoming Number below, and all of them should begin to ring during the call setup (signaling phase), see the Status above. Once some remote SIP accounts start to ring one local phone, answer by off-hook to the call, and the call is successfully established. The other ringing local phone ports will stop ringing and turning to InCall state in the Status field.
Internal Call – It is a local VoIP call between two different local phone ports. No SIP signaling is needed and thus no SIP server is involved to establish this type of call. This type of call is established through the Internal and Non-SIP local setup signaling procedure between the call- originating and call-terminating local phone ports. In general, one or more local phone ports can be designed to receive this type of call, and once any of the ringing phones answer the call, the other ringing ones will stop ringing. During the call setup phase (signaling phase), Calling state is displayed in Status field, and turns to InCall state once the call is successfully established.
Codec
This field displays what voice codec is being used for a current VoIP call through a phone port.
From Phone Port Type
This field displays the phone ports type used to originate, start, or create the current VoIP call. Type Two possible type values will be displayed here: SIP – For the current call which is categorized as Incoming Call in the Call Type filed, this field will show the type SIP. FXS – As for the other cases: Outgoing Call and Internal Call, this field will show the corresponding local phone port type: FXS, the legacy analog phone port on the device.
To Phone Port Type
This field displays the phone ports type used to receive the current VoIP call. Three possible type Type values will be displayed here: SIP – For the current call which is categorized as Outgoing Call in the Call Type field, this field will show the type SIP. FXS and Unknown – As for the other cases: Incoming Call and Internal Call, this field will show the corresponding local phone port type: FXS, the legacy analog phone port on the device. While the call is established, this field shows Unknown during the call setup phase (signaling phase). This is because one or more local phone ports can be configured or designed to receive these two types of calls, see the Call Type above, and the local phone port will answer the call that hasn't been determined yet at that time.
Peer Number
This field displays the SIP number of the party that is currently engaged in a VoIP call through a phone port.
Phone Status
Phone
This field displays the name of a phone port on the Device.
Outgoing Number
This field displays the SIP number that you use to make calls on this phone port.
Incoming Number
This field displays the SIP number that you use to receive calls on this phone port.
Hook Status
This field displays whether the phone is in the on or off hook status.
Off-Hook means a telephone connected to one of the phone port has its receiver off the hook.
On-Hook means a telephone connected to one of the phone port has its receiver on the hook.