Summary:	ASTERISK-10599: Asterisk-1.4.x :: Chan_H323 with Codec-g723 :: Metalic Sound
Reporter:	Tusar Ahmed (tusar)	Labels:
Date Opened:	2007-10-23 05:54:41	Date Closed:	2011-06-07 14:07:46
Priority:	Minor	Regression?	No
Status:	Closed/Complete	Components:	Channels/chan_h323
Versions:		Frequency of Occurrence
Related Issues:
Environment:		Attachments:
Description:	I am trying to install Asterisk-v.1.4.13 with codec g723 and g729 . I have downloaded codec g723/g729 from http://asterisk.hosting.lv/ for test . g729 is running like charm but facing problem with g723 . With g723 codec Caller side getting metalic/choppy sound where Callee can hear clear. Here is below of my scenario : ====================== SoftPhone[g723]-> SIP-Asterisk-H323 -> Quintum DX [g723] <=Metalic Sound SoftPhone[g723]-> H323-Asterisk-H323 -> Quintum DX [g723]<=Metalic Sound h323.conf ======= disallow=all allow=g723.1 allow=g729 *CLI> show channel H323/xx.xx.xx.xx:1720-1  NativeFormats: 0x1 (g723)    WriteFormat: 0x1 (g723)     ReadFormat: 0x1 (g723) WriteTranscode: No  ReadTranscode: No Result : Getting metalic/choppy sound with the above config but without transcoding . If I disable the codec part at the "h323.conf" then getting clear voice but then it is transcoding and Consuming more CPU power. h323.conf ======= ;disallow=all ;allow=g723.1 ;allow=g729 *CLI> show channel H323/xx.xx.xx.xx:1720-2  NativeFormats: 0x1 (g723)    WriteFormat: 0x40 (slin)     ReadFormat: 0x40 (slin) WriteTranscode: Yes  ReadTranscode: Yes But for Scenario [Full SIP Path]: ================================= SoftPhone [g723] -> SIP-Asterisk-SIP -> QuintumGW [g723] <= No problem There is no problem with clear voice. ****** ADDITIONAL INFORMATION ****** Note : There is no problem with Codec g729 and Asterisk-v.1.2.24 with all the above scenario . It seems some problem with the Asterisk-v.1.4.x H323-Channel-driver with Codec_g723. Regards, ..Tusar..
Comments:	By: Tusar Ahmed (tusar) 2007-10-29 06:38:23 Result is same for .. LinksysPAP2[g723]-> SIP-Asterisk-H323 -> Quintum DX [g723] <=Metalic/Choppy Sound By: Tilghman Lesher (tilghman) 2007-12-05 11:41:19.000-0600 We don't support outside codecs.