VoIP – SIP (Voice over IP – Session Initiation Protocol) simulates the VoIP calls between two OpsRamp gateways in your network. This will help to analyze and identify the call response, quality, jitter, and calculate the Mean Opinion Score (MOS).

MOS grade

MOS gradeQoE evaluation
5Excellent
4Good
3Common
2Bad
1Very bad

Prerequisites

  • Enable SIP Agent before configuring the SIP synthetics monitor.
  • Keep all SIP-enabled gateways in one client.

Configure Parameters

After selecting the synthetic monitor type to SIP, enter the follwoing details:

SectionField NameDescriptionValues/ExampleField Type
SIP ConfigurationCall PlanEnter the IP address/host name of the synthetics. It should be accessible from Gateway.
  • ONETOMANY: Monitoring many Gateways configured at the destination locations from a gateway configured at the source location.
  • ANYTOANY: Gateways configured at Locations monitor each other.
Dropdown
Source LocationsSelect source location from dropdown.Dropdown
Destination LocationsSelect destination location from dropdown.Dropdown
Call DurationDuration that verifies the call quality. Call duration cannot exceed the time configured for Call Frequency.Dropdown
Codec FormatCodec format that determines the format of the voice packets received during the call.Dropdown
FrequencyThe time interval to monitor the chosen Gateways.Dropdown

After configuring, view metrics, and graphical representations for more information.

Metrics Graphical Representation

Graphical Representation

Supported Metrics

Metric NameDescriptionUnits
availability.down.location.count

Location Count. Number of locations where the configured host is down-
sip.call.latency

Latency. Time between the moment a voice packet is transmitted and the moment it reaches its destinationmilliseconds
sip.call.pl

Packet loss. Percentage of packets dropped by the network on the way to the destination addresspercent
sip.call.mos

Mean Opinion Score (MOS): Measure of voice quality-
sip.call.jitter

Jitter. Time taken to measure the voice instabilitymilliseconds
sip.call.rtt

Round trip time. Duration for data to travel to the target destination for the speed test and backmilliseconds