Viewing Voice Channel Information

You can view detailed information per voice port (channel). The information is grouped under the following tabs:

■ SIP: Displays SIP-related information such as endpoint status (e.g., idle) and phone number
■ Basic: Displays information such as call duration.
■ RTP/RTCP: Displays RTP/RTCP-related information such as packet loss and network jitter.
■ Voice Settings: Displays voice-related configuration such as silence suppression.
➢ 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.

The following page appears, displaying the Basic tab by default:

Select the other tabs (SIP, RTP/RTCP, or Voice Settings) to view the different channel information.

If you want to view additional information (e.g., line voltage) for analog ports, use the CLI command show voip interface fxs-fxo.

Channel Status Description

Field

Description

SIP Tab

'Endpoint Status'

Status of endpoint:

■ "IDLE": No call
■ "ACTIVE": Active call

'Assigned Phone Number'

Phone number of the port.

'Trunk Group'

Trunk Group to which the port is assigned. To configure Trunk Groups, see Configuring Trunk Groups.

'MWI Information'

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

■ "yes": Endpoint has a voice-mail message.
■ "...": No voice mail for the endpoint.

'Call ID'

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

'Call Originator'

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:Port)'

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 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).

'Fax State'

Currently, not in use.

'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.

Basic Tab

'Channel Identifier'

Channel identifier number.

'Status'

Status of port:

■ "Inactive": No call
■ "Active": Active call

'Call ID'

See above.

'Endpoint ID'

ID of endpoint.

'Call Duration'

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

RTP/RTCP Tab

'Channel Identifier'

Channel identifier number.

'RTP Direction'

Direction of RTP:

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

'Local UDP Port'

Local UDP port on the device.

'Remote IP Addr'

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 %).

'Remote RTCP CName'

RTP Control Protocol (RTCP) Canonical Name (CNAME) - persistent transport-level identifier for an RTP endpoint.

Voice Settings Tab

'Channel Identifier'

Channel ID.

'Coder'

Displays the coder used for the call.

'Frame Duration'

Frame duration (in msec).

'Echo Canceller'

Indicates whether the echo canceller is enabled or disabled.

'Silence Suppression'

Indicates whether silence suppression is enabled or disabled.

'Input Gain'

Displays the volume gain (in dB).

'Voice Volume'

Displays the voice volume gain (in dB).

'Enabled Detectors'

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

'DTMF Transport Type'

Displays the DTMF transport type.

'Fax Transport Type'

Displays the fax transport type.