I have a question regarding the methods used to measure Voice Quality. We have a product that is a VoIP ADSL Gateway. It has two FXS ports. We have two equipments that we use to measure Voice Quality.
- Digital Speech Level Analyser from Malden which uses PAMS, PESQ
- Ameritec CRS-A Analog Call generator with makes bulk calls and also measures Voice Quality based on E-Model R-factor.
We usually connected two such gateways and make calls between them.
Can anyone please suggest which is the best method to measure voice quality?
Ours isn't a live network. Hence sending test signals doesn't matter much for us. Basically it is a test Lab.
So, I would be very much thankful to you if anyone could point out the merits/demerits of both the methods above.
Thanks in advance.