Post Dial Delay Test
Know how quickly your customers’ calls are answered and take action if they’re being kept waiting with the post dial delay test.
Why test Post Dial Delay
Monitor connectivity issues
Identify connectivity issues associated with high post dial delay.
Reduce troubleshooting time
Proactively manage your carriers and monitor adherence to SAL.s.
Protect your brand
Respond in real-time to any issues affecting your global contact numbers.
Identify, & report on any issues
Proactively measure PDD and spot where there are variations over time.
What is it?
The Post Dial Delay test is used to proactively monitor the time between a number being dialled and the call being answered. PDD is a call answer time metric which takes the intermediary networks into account.
Acceptable Post Dial Delay is stated as 7 seconds by the international Telecommunication Union (ITU) however, Post Dial Delay can increase or decrease over time as carriers move traffic through different interconnects to handle volume.
When is it used?
The test is commonly used to gain real-time alerts on customer impacting issues, to hold carriers to SLAs and to evidence your independently measured quality to your customer. Resulting in an excellent tool when your network operations center (NOC) teams are troubleshooting issues.
What is measured?
Measure and monitor key telecommunications performance indicators, including:
- Connection success or failure
- Post dial delay
- CLI Presentation (The Caller Line Identification)
How it works
- The Spearline in-country or in-state server dials your toll and toll-free contact numbers. We use SIP or standard phone lines with ISDN signaling to replicate your customers’ experience.
- The Spearline server waits for a connection or failure related message.
- Once a message has been received, the test call is ended to ensure the call doesn’t connect to a live agent.
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