Viewing Voice Channel Information

You can view detailed information per voice port (channel).

➢ To view channel information:
1. Open the Monitor home page (see Viewing Device Status on Monitor Page).
2. On the graphical display of the device, click a telephony port.
3. From the shortcut menu, choose Port Status.
4. (Digital ports only) In the Trunks & Channel Status page (see Viewing Trunks & Channels Status), click a trunk's channel.

The following pop-up appears:

Channel Description

Tab / Field

Description

Physical

Last Current Disconnect Duration

Duration of the last current disconnect signal (far-end call party has disconnected call).

Line Current

Line current (in mA).

Line Voltage

Line voltage (in V).

Ring (0-Off, 1-On)

Displays the ringing state ("Off" or "On").

Line Connected

Displays if the line is connected or not ("Disconnected" or "Connected").

Polarity State

Displays the polarity state.

Line Polarity

Displays the line polarity ("Positive" or "Negative").

Message Waiting Indication

Displays if MWI is enabled or disabled ("On" or "Off").

Hook

Displays the hook state ("On Hook" or "Off Hook").

SIP

Status

Status of port ("Inactive" - no call; "Active" - active call).

Call Type

Type of call:

■ "Voice"- voice call
■ "Fax" - fax call

Endpoint Status

Status of the endpoint:

■ "IDLE" - no call
■ "ACTIVE" - active call

Assigned Phone Number

Phone number assigned to the port.

MWI Information

Indicates if the phone has a voicemail (Message Waiting Indicator):

■ "yes" - endpoint has a voicemail message
■ "..." - no voicemail

Call ID

ID of the call (SIP Call-ID header).

Call Originator

Where the call originated from (caller):

■ "TEL" - call made from Tel side (i.e., the port)
■ "IP" - call made from IP side

Source Tel Number

Telephone number of the caller.

Destination Tel Number

Telephone number of the called party.

Redirect Calling Number

Telephone number of the redirected number.

Remote Signaling IP

IP address used for SIP on the IP side.

Remote RTP

IP address and port used for RTP on the IP side.

Call Establishment Duration

Length of time (in seconds) it took to establish the call.

Call Duration

Call duration (in seconds) from when the call was established.

Call State

Current state of the call:

■ "IDLE" - no call.
■ "SETUP" - signaling to setup call (SIP INVITE)
■ "ALERT" - ringing at remote end (SIP 180 Ringing)
■ "RINGBACK" - ringback played to port
■ "SESSION" - call has been answered and is established
■ "RELEASE" - call has been terminated (SIP 200 OK)

Coder + PTime

Coder and packetization time used for the call.

Call Type

Type of call:

■ "Voice"- voice call
■ "Fax" - fax call

Call Establishment Method

Mode of call:

■ "Normal" - no early media during SIP session establishment (before call accepted).
■ "EarlyMedia" - media sent (e.g., announcements) before call accepted by called party.

DTMF Selected Method for Tx/Rx

DTMF Transport method used for the call. For configuring the transport method, see Configuring DTMF Transport Types.

Media

RTP Direction

Direction of RTP.

"Tx & Rx": both directions (transmit and receive)

Local UDP Port

Local UDP port on the device.

Remote IP Address

IP address of the remote IP side.

Remote UDP Port

Port of the remote IP side.

Rx Octet Count

Total number of received packets.

Tx Octet Count

Total number of transmitted packets.

Network Jitter

Network jitter (in msec).

Roundtrip Delay

Round-trip delay time (in msec).

Packet Loss

Packet loss (in %).

Frame Duration

Frame duration (in msec).

Echo Canceller

Displays whether echo cancellation is enabled or disabled.

Silence Suppression

Displays whether silence suppression is enabled or disabled.

Input Gain

Displays the input volume gain (in dB).

Voice Volume

Displays the voice volume (in dB).

Enabled Detectors

Displays enabled detectors (e.g., AMD).

DTMF Transport Type

Displays the DTMF transport type (e.g., RFC 2833).

Fax Transport Type

Displays the fax/modem transport type (e.g., T.38).