Softswitch performance

General information

Performance results in the following conditions (recommended hardware is used, SIP protocol, no transcoding, CPS is low (<5), GUI/DB on another server, other processes than calls are not in use) are:

MOR - 500 concurrent calls*
M2 - 1000 concurrent calls*

'* We cannot guarantee such amount of concurrent calls as many factors influence it:

Hardware specifications (CPU, RAM, HDD type - 5400/7200 rpm, SSD, SAS, Raid, etc.)
Network (routers/switches)
Providers (connectivity, quality, PDD)
CPS (if you accept a lot of short calls at the same time (so called dialer or call center traffic), softswitch performance decreases)
Structure of call (signalling only or signalling with media)
Processes, running on the same time (if you generate invoices, statistics or run other processes, softswitch performance decreases)
Additional functionality usage (if you record calls, use different IVR structures, softswitch performance decreases)
Codec and protocol used
Protocol and codec conversion (in case of transcoding performance decreases two times)
Calls length (if you accept a lot of short calls at the same time (so called dialer or call center traffic), softswitch performance decreases)
DB and GUI on same server or on the separate (if you separate DB and GUI, you can increase performance)
SIP balancer present or not (if you use SIP balancer in front of the servers, you can increase performance)
Business model (Calling Card, Callback and Call Center calls decreases softswitch performance)
etc