Sipdroid on HTC Hero - Can't hear received calls

[djfatrod]

Hi there,

I'm running Exetel HSPA and VOIP by using sipdroid on my HTC Hero.

I'm seem to be able to make VOIP calls ok but when someone calls my VOIP number I can't hear them. My phone rings and I answer it but I can't hear them and they can't hear me.

Would this be a problem with Sipdroid or is there something I have not set up properly?

Any help would be appreciated.

Cheers

[djfatrod]

Nobody knows?

[jokiin]

Nobody knows?

is this using an Exetel HSPA Optus based or Vodafone based phone service?

[tones]

I think the problem is that the Sipdroid software uses the g711 codec and unfortunately this page http://www.exetel.com.au/voip_overview.php says under "Exetel VOIP Via 'Soft Phone' Implementation" that

You may select free software that uses G.711 but be advised that you can only make outgoing calls. Incoming calls cannot be received.

I got around this by using Fring on my Android phone. http://forum.exetel.com.au/viewtopic.php?f=58&t=28593

I find fring is very useable when you have good 3G reception but anything less than 3 bars and the delay seems to be much greater.

Hopefully exetel will make their MOIP software available on the Android platform soon.

[djfatrod]

Ahh thanks tones, that makes sense.

I actually tried fring first but the lag was pretty bad for me too, and I am in North Sydney!

Sipdroid had near perfect call quality so hopefully that will change in the future. I'm now trying SipAgent.

Yes jokiin - Exetel/Optus HSPA.

[jokiin]

Ahh thanks tones, that makes sense.

I actually tried fring first but the lag was pretty bad for me too, and I am in North Sydney!

Sipdroid had near perfect call quality so hopefully that will change in the future. I'm now trying SipAgent.

Yes jokiin - Exetel/Optus HSPA.

what codec options are available in Sipdroid and also does it have the option to add a STUN server?

[tones]

I hadn't heard of SipAgent... do you know what codecs it uses?

[djfatrod]

Not sure what a STUN server is but Sipdroid only supports G.711 I believe.

Quite a few people asking for G.729 too: http://code.google.com/p/sipdroid/issues/detail?id=49

SipAgent doesn't support 729 either

Only 711, GSM and Speex

Guess its Fring or nothing atm...

[jokiin]

Not sure what a STUN server is but Sipdroid only supports G.711 I believe.

Quite a few people asking for G.729 too: http://code.google.com/p/sipdroid/issues/detail?id=49

SipAgent doesn't support 729 either

Only 711, GSM and Speex

Guess its Fring or nothing atm...

there are ways around the problem, using a service like Oztell, Voxalot etc you can handle multiple codecs by transcoding, GSM is a good low bitrate codec suitable for 3G use

[tones]

I know exetel only "support" g729 but what does anyone know what other codecs we can use.

Are GSM or speex available without going through a third party?

[Zuriel]

I kept getting codec errors with Sipdroid 1.4, the version currently on the Android Market. Version 1.4.1pre from sipdroid.org works fine, though. Sending and receiving calls through wlan connect using PCMA (64kbit), which I believe is g711.

The codec selection in Sipdroid was reworked two weeks ago and those changes are in 1.4.1pre. Give it a try if you're having problems. You might have to enable the 'allow install of non-Market apps' setting in the Application Settings menu, though.

Also, I believe Fring sends VoIP data to servers in America for transcoding before sending it back to Exetel's SIP server, which can't help but add 200-300ms latency to a conversation.

[plasmapuff]

I'm having the same problems.

I've just got Sipdroid installed on my HTC Tatto (Android 1.6) and using a Exetel DID but am running into a few problems.

I'm entering the details correctly and it is registering. This is all over Wifi, not 3G by the way.

I can make outgoing calls, but I can only hear the other party, they can't hear me.

I can receive incoming calls, but neither party can hear each other after the call connects.

So is Fring the only workaround at this stage?

cheers