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copied!<p>First step is build <code>pjsip</code> source code for Android (steps for Ubuntu Linux):</p> <ol> <li>Set <code>ANDROID_NDK_ROOT</code> environment variable to your NDK's root folder.</li> <li>Go to pjsip 2.x folder and create <code>pjlib/include/pj/config_site.h</code> including <code>config_site_sample.h</code> (<code>#include <pj/config_site_sample.h></code>)</li> <li>Run <code>./configure-android</code></li> <li>Run <code>make clean && make depend && make</code></li> </ol> <p>After these steps, you will have several static libraries in several folders. I suggest to group them in a same folder (better in your project) by:</p> <pre><code>mkdir <your_project_path>/pjsip_libs find . -name *.a | xargs -I % cp % <your_project_path>/pjsip_libs/ </code></pre> <p>Once you've all libraries, you need to add those libraries into your project's Android.mk file, this is done by including a new module section per library. This module section should be something like:</p> <pre><code>include $(CLEAR_VARS) LOCAL_MODULE := pjsua-arm-unknown-linux-androideabi LOCAL_SRC_FILES := $(MY_PJLIB_PATH)/libpjsua-arm-unknown-linux-androideabi.a include $(PREBUILT_STATIC_LIBRARY) </code></pre> <p>And, in the section you're actually building your JNI project's source code, add all modules to your static library references:</p> <pre><code> LOCAL_STATIC_LIBRARIES := pjsua-arm-unknown-linux-androideabi ... </code></pre> <p>This will include <code>pjsip</code> references into your JNI library. Now, you need to configure a <code>pjsip</code> UA instance.</p> <p>You've a explanation about init and start <code>pjsip</code>'s UA (pjsua) in <code>pjsip/include/pjsua-lib/pjsua.h</code> but main steps to follow are:</p> <ol> <li>Create a UA instance with <code>pjsua_create</code></li> <li>Create a worker thread with <code>pj_thread_create</code></li> <li><p>Set default configuration for UA instance:</p> <p>pjsua_config cfg; pjsua_logging_config log_cfg; pjsua_media_config media_cfg;</p> <p>pj_cli_cfg_default(&app_config.cli_cfg.cfg); pjsua_logging_config_default(&log_cfg); pjsua_media_config_default(&media_cfg);</p></li> <li><p>Init the stack with <code>pjsua_init</code></p></li> <li>Start the stack with <code>pjsua_start</code></li> </ol> <p>From here, you've plenty of configuration options (log, media, transport, etc.)</p> <p>You can find a basic PJSIP tutorial <a href="http://trac.pjsip.org/repos/wiki/PJSIP_Tutorial" rel="nofollow">here</a> and, inside pjsip's source root path, you've a basic (but complete enough for a basic SIP usage) at: <code>pjsip-apps/src/samples/simple_pjsua.c</code></p> <p><strong>Edit:</strong> When building android project in pjsip-apps, you can face a problem because pjsua-app is not generated by default on the general build (more specifically, pjsua: target is not included on all: target at pjsip-apps/build/Makefile). To fix this just go to pjsip-apps/build and run:</p> <p>make pjsua</p> <p>This would create proper object files at: pjsip-apps/build/output/pjsua-arm-unknown-linux-androideabi/ (needed when building android sample).</p> <p>Once you've all corresponding object files, you can run ndk-build again at pjsip-apps/src/pjsua/android</p>

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