SIP Client - Revision history

Odinsdream at 16:53, 9 January 2010

2010-01-09T16:53:27Z

Odinsdream at 16:52, 9 January 2010

2010-01-09T16:52:54Z

Odinsdream at 16:52, 9 January 2010

2010-01-09T16:52:13Z

Odinsdream: New page: I've just started working on trying to get a SIP client working on the Pre. [http://www.pjsip.org/pjsua.htm PJSUA] has been compiled for the Pre [[http://forums.precentral.net/palm-pre/20...

2010-01-09T16:50:45Z

New page: I've just started working on trying to get a SIP client working on the Pre. [http://www.pjsip.org/pjsua.htm PJSUA] has been compiled for the Pre [[http://forums.precentral.net/palm-pre/20...

New page

I've just started working on trying to get a SIP client working on the Pre.

[http://www.pjsip.org/pjsua.htm PJSUA] has been compiled for the Pre [[http://forums.precentral.net/palm-pre/202897-got-sip-working-natively.html by withineboredom at the PreCentral forums]]. This is a command-line SIP client based on PJSIP, which is the core of a lot of [[http://www.pjsip.org/apps.htm other open-source SIP clients]] including [[http://code.google.com/p/siphon/ Siphone]] for the iPhone.

If you don't have an account at PreCentral, you can download the binary straight from my site at [[http://simplykiwi.com/pjsua]] (1.2M)

Copy this to '''/opt/bin/''' on the device (assuming you've already installed Optware) and then run it by executing '''./pjsua'''

Review the documentation for the application at [[http://www.pjsip.org/pjsua.htm]]

Like withineboredom says, the application doesn't automatically detect any audio devices. It otherwise works fine - you can place and receive calls (as long as you have an account with a SIP provider) and you can see the traffic going back and forth.

In researching the audio setup, apparently the Pre uses [[http://www.pulseaudio.org/wiki/FAQ PulseAudio]] to route audio. Check out the files in '''/etc/pulse/''' on the Pre, especially '''system.pa''' which defines some per-application sound settings.

pulseaudio is running in '''System''' mode on the device, and it interestingly doesn't have '''disallow-module-loading''' enabled. This mode is discussed at the [[http://www.pulseaudio.org/wiki/SystemWideInstance PulseAudio documentation site]] and here's the interesting part:

"Worse security, because the user can now command a server app running under another user name. He could even load/unload modules from that sound server "

This seems like it's actually a good thing from the perspective of adding functionality to the system by loading new modules instead of altering the existing setup at all.

'''PJSUA''' has command-line flag options to specify the capture and output audio devices. I haven't been able to figure out the appropriate things to set these options to. I've tried '''hw:0''' and '''pcm_output''' and '''pcm_input''' without luck. If anyone has more experience with PulseAudio and how to pass audio into it from PJSUA, I think we have a good chance of creating a SIP client.

With the latest announcements from CES about additional development tools from Palm, it could be possible to include [[http://www.pjsip.org/apps.htm PJSIP]] code directly into a native application.

@@ Line 3: / Line 3: @@
 [http://www.pjsip.org/pjsua.htm PJSUA] has been compiled for the Pre [http://forums.precentral.net/palm-pre/202897-got-sip-working-natively.html by withineboredom at the PreCentral forums]. This is a command-line SIP client based on PJSIP, which is the core of a lot of [http://www.pjsip.org/apps.htm other open-source SIP clients] including [http://code.google.com/p/siphon/ Siphone] for the iPhone.
-If you don't have an account at PreCentral, you can download the binary straight from my site at [[http://simplykiwi.com/pjsua]] (1.2M)
+If you don't have an account at PreCentral, you can download the binary straight from my site at [http://simplykiwi.com/pjsua http://simplykiwi.com/pjsua] (1.2M)
 Copy this to '''/opt/bin/''' on the device (assuming you've already installed Optware) and then run it by executing '''./pjsua'''
-Review the documentation for the application at [[http://www.pjsip.org/pjsua.htm]]
+Review the documentation for the application at [http://www.pjsip.org/pjsua.htm http://www.pjsip.org/pjsua.htm]
 Like withineboredom says, the application doesn't automatically detect any audio devices. It otherwise works fine - you can place and receive calls (as long as you have an account with a SIP provider) and you can see the traffic going back and forth.

@@ Line 1: / Line 1: @@
 I've just started working on trying to get a SIP client working on the Pre.
-[http://www.pjsip.org/pjsua.htm PJSUA] has been compiled for the Pre [[http://forums.precentral.net/palm-pre/202897-got-sip-working-natively.html by withineboredom at the PreCentral forums]]. This is a command-line SIP client based on PJSIP, which is the core of a lot of [[http://www.pjsip.org/apps.htm other open-source SIP clients]] including [[http://code.google.com/p/siphon/ Siphone]] for the iPhone.
+[http://www.pjsip.org/pjsua.htm PJSUA] has been compiled for the Pre [http://forums.precentral.net/palm-pre/202897-got-sip-working-natively.html by withineboredom at the PreCentral forums]. This is a command-line SIP client based on PJSIP, which is the core of a lot of [http://www.pjsip.org/apps.htm other open-source SIP clients] including [http://code.google.com/p/siphon/ Siphone] for the iPhone.
-If you don't have an account at PreCentral, you can download the binary straight from my site at [[http://simplykiwi.com/pjsua]] (1.2M)
+If you don't have an account at PreCentral, you can download the binary straight from my site at [http://simplykiwi.com/pjsua] (1.2M)
 Copy this to '''/opt/bin/''' on the device (assuming you've already installed Optware) and then run it by executing '''./pjsua'''
-Review the documentation for the application at [[http://www.pjsip.org/pjsua.htm]]
+Review the documentation for the application at [http://www.pjsip.org/pjsua.htm]
 Like withineboredom says, the application doesn't automatically detect any audio devices. It otherwise works fine - you can place and receive calls (as long as you have an account with a SIP provider) and you can see the traffic going back and forth.
-In researching the audio setup, apparently the Pre uses [[http://www.pulseaudio.org/wiki/FAQ PulseAudio]] to route audio. Check out  the files in '''/etc/pulse/''' on the Pre, especially '''system.pa''' which defines some per-application sound settings.
+In researching the audio setup, apparently the Pre uses [http://www.pulseaudio.org/wiki/FAQ PulseAudio] to route audio throughout the system. This is what allows the device to play audio from multiple sources at the same time. Check out the configuration files in '''/etc/pulse/''' on the Pre, especially '''system.pa''' which defines some per-application sound settings.
-pulseaudio is running in '''System''' mode on the device, and it interestingly doesn't have '''disallow-module-loading''' enabled. This mode is discussed at the [[http://www.pulseaudio.org/wiki/SystemWideInstance PulseAudio documentation site]] and here's the interesting part:
+pulseaudio is running in '''System''' mode on the device, and it interestingly doesn't have '''disallow-module-loading''' enabled. This mode is discussed at the [http://www.pulseaudio.org/wiki/SystemWideInstance PulseAudio documentation site] and here's the interesting part:
 "Worse security, because the user can now command a server app running under another user name. He could even load/unload modules from that sound server "
@@ Line 21: / Line 21: @@
 '''PJSUA''' has command-line flag options to specify the capture and output audio devices. I haven't been able to figure out the appropriate things to set these options to. I've tried '''hw:0''' and '''pcm_output''' and '''pcm_input''' without luck. If anyone has more experience with PulseAudio and how to pass audio into it from PJSUA, I think we have a good chance of creating a SIP client.
-With the latest announcements from CES about additional development tools from Palm, it could be possible to include [[http://www.pjsip.org/apps.htm PJSIP]] code directly into a native application.
+With the latest announcements from CES about additional development tools from Palm, it could be possible to include [http://www.pjsip.org/apps.htm PJSIP] code directly into a native application.