Chapter 28 VoIP Status
AX/DX/EX/PX Series User’s Guide
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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.
Table 171 System Monitor > VoIP Status (continued)
LABEL DESCRIPTION
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