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pjsip-ios
## PJSIP iOS
PJSIP is a free and open-source multimedia communication library written in C language. The library provides multimedia communication capabilities such as audio, video, presence, instant messaging, and more.
The PJSIP iOS project aims to make this powerful library available for iOS developers, enabling them to build robust and feature-rich communication apps for iPhone and iPad devices. This documentation will guide you through the process of integrating and using PJSIP in your iOS applications.
### Features
PJSIP iOS offers a wide range of features, making it a versatile solution for various communication needs. Some of the major features include:
– Audio and video communication
– SIP and RTP protocols
– Support for multiple SIP accounts
– Call management: make, receive, hold, transfer, and conference calls
– Presence and instant messaging
– Echo cancellation and noise suppression
– Encryption and security features
– NAT traversal
– Session timers
### Requirements
Before you begin integrating PJSIP into your iOS application, make sure you meet the following requirements:
– Xcode IDE (Integrated Development Environment)
– Understanding of Objective-C or Swift programming languages
– Basic knowledge of iOS development
– macOS computer to run Xcode
– PJSIP source code or pre-compiled libraries
### Installation
To get started with PJSIP in your iOS project, follow these steps:
1. Download the PJSIP source code or pre-compiled libraries from the official website.
2. Extract the downloaded files to your desired location.
3. Open your Xcode project and navigate to the project editor.
4. Drag and drop the PJSIP source code files or pre-compiled libraries into your Xcode project, making sure to select the appropriate target.
5. Configure your Xcode project’s build settings to include the necessary header files and libraries.
6. Build your project to verify the integration of PJSIP.
### Usage
Once you have successfully integrated PJSIP into your iOS project, you can start using its features to build communication functionality into your app. Here are some key aspects of PJSIP usage:
#### Initializing PJSUA
To use PJSIP functionalities, you need to initialize the PJSUA subsystem. Add the following code snippet when initializing your app:
“`objective-c
#include
pjsua_config cfg;
pjsua_logging_config log_cfg;
pj_status_t status;
status = pjsua_create();
if (status != PJ_SUCCESS) {
// handle initialization error
}
pjsua_config_default(&cfg);
// Configure other essential settings
status = pjsua_init(&cfg, &log_cfg, NULL);
if (status != PJ_SUCCESS) {
// handle initialization error
}
// Initialization successful, proceed with further setup
“`
#### Making Calls
With PJSIP, making calls is straightforward. Here’s an example of making an audio call:
“`objective-c
pjsua_call_id callId;
pj_status_t status;
pjsua_call_setting callSetting;
pjsua_call_setting_default(&callSetting);
pjsua_msg_data msgData;
pjsua_msg_data_default(&msgData);
// Set destination SIP URI
const char *uri = “sip:user@example.com”;
pj_str_t dstUri = pj_str((char*)uri);
status = pjsua_call_make_call(myAccount, &dstUri, &callSetting, NULL, &msgData, &callId);
if (status != PJ_SUCCESS) {
// handle call error
}
// Call made successfully, perform necessary actions
“`
#### Handling Incoming Calls
To handle incoming calls, you need to register a callback function. Here’s an example:
“`objective-c
void onIncomingCall(pjsua_acc_id accountId, pjsua_call_id callId, pjsip_rx_data *rdata) {
pjsua_call_answer(callId, 200, NULL, NULL);
// handle incoming call further
}
// Register callback function
pjsua_set_callback(&myCallback);
// Incoming call will trigger the registered callback
“`
These are just some basic usage examples to give you a head start. Refer to the official PJSIP documentation and sample projects for more detailed implementation examples and advanced configurations.
### Resources
For more information and resources related to PJSIP iOS, refer to the following:
– [PJSIP Official Website](https://www.pjsip.org/)
– [PJSIP GitHub Repository](https://github.com/pjsip/pjproject)
– [PJSIP Documentation](https://www.pjsip.org/docs/book-latest/html/index.html)
– [PJSIP Development Mailing List](https://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org)
– [PJSIP iOS Sample Projects](https://github.com/pjsip/pjproject/tree/master/pjsip-apps/src/swig/ios)
This comprehensive guide should help you integrate and utilize the power of PJSIP in your iOS application development. Happy coding!