PCBEST NETWORK SIP Software Development Kit(SDK)
Global Telephony Application Programming Interface (GTAPI)
PCBest Network's Global Telephony Application Programming Interface(GTAPI)is a well designed, highly integrated, and very flexible component for developing various telephony applications,
such as VOIP, IVR, and CTI applications.
The following table gives the general comparation of softphone SDK and server SDK.
| Softphone SDK | Server SDK | |
| Max Simultaneous Calls | 4 | 4 - 1024 |
| Basic call control(Answer, Make, Hold and Transfer) | Yes | Yes |
| Advanced call control(Auto Answer, Do Not Disturb) | Yes | Yes |
| Music On Hold | Yes | Yes |
| Play DTMF String | Yes | Yes |
| Detect DTMF String | No | Yes |
| Play audio file | Yes(Only 1 channel at a time) | Yes |
| Record audio file | Yes(Only 1 channel at a time) | Yes |
| Call conversation recording | Yes | Yes |
| Full or Half duplex connect two channels | No | Yes |
| Conference | Yes(Only 1 conference room) | Yes |
| Set and get speaker and microphone volume | Yes | Yes |
| Play pre-connection(ring, busy and tone) sound on client sound device | Yes | Yes |
| Set channel timer | Yes | Yes |
| Redirect calls(3xx response) | Yes(Only 1 channel at a time) | Yes |
| Access RTP package | No | Yes |
| Access DirectX audio stream | Yes | Yes |
| Voice Activity Detection | No | Yes |
| Tone Detection | No | Yes |
| Voice Message Notification | Yes | Yes |
| User Presence | Yes | Yes |
| Message Text | Yes | Yes |