Minimum Call Statistics Requirements for SIP Trunk Customers

Created by Daniel Kauffer, Modified on Mon, 17 Apr 2023 at 05:13 PM by Daniel Kauffer

As a SIP Trunk service provider, we want to ensure that all of our customers are aware of our policies and procedures to prevent SPAM and fraudulent traffic. To help protect our network and ensure that our customers receive the best quality of service possible, we have implemented a set of minimum call statistics requirements.

These requirements are designed to distinguish between conversational and call centre traffic, with conversational traffic being defined as calls made between two individuals, and call centre traffic being defined as calls made to or from a call centre or contact centre. 

Below are the minimum call statistics required for each type of traffic:

Conversational:
ASR (Answer-Seizure Ratio): less than 50%
ACD (Average Call Duration): less than 60 seconds


Call Center:
ASR (Answer-Seizure Ratio): less than 40%
ACD (Average Call Duration): less than 30 seconds



- ASR measures the percentage of calls that are answered compared to the number of calls that are attempted. A low ASR can indicate poor-quality traffic, such as robocalls or telemarketing calls. 

- ACD measures the average duration of a call, and a low ACD can indicate that calls are being terminated quickly, which could also be a sign of poor-quality traffic.


We strongly recommend that all of our customers adhere to these minimum call statistics requirements to ensure that their traffic is not considered SPAM or fraudulent. Any traffic that falls below these statistics may be blocked for security reasons. By following these requirements, we can work together to maintain a secure and high-quality SIP Trunk service.

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