Displaying 20 results from an estimated 1200 matches similar to: "Why doesn't Asterisk try to prevent transcoding"
2023 Jul 05
3
Setting codec on originating (calling) channel with chan_pjsip (SIP_CODEC_INBOUND equivalent)
Hello,
Anyone? I have hard time to believe this is not possible with chan_pjsip.
Anyway, may I ask how people handle the following scenario which I
imagine should be quite common:
- I have internal extensions talk to each other using g722. so their
codec setting (with chan_sip now) is "allow=g722,ulaw"
- I have carriers trunks that handle ulaw only (allow=ulaw)
- calls between
2023 Jul 05
1
Setting codec on originating (calling) channel with chan_pjsip (SIP_CODEC_INBOUND equivalent)
Hello Michael,
you are referring to the following behavior - did I get it correctly?:
outbound broken: asterisk offers g722 / g711 to provider (callee),
callee answers g711. Asterisk now transcodes between caller and callee
(g722 <-> g711).
inbound works: call from provider: g711 -> asterisk drops g722 and
passes g711 to internal callee -> no transcoding.
As far as I know,
2023 Jun 30
1
Setting codec on originating (calling) channel with chan_pjsip (SIP_CODEC_INBOUND equivalent)
Hello,
I finally got to look at chan_sip to chan_pjsip migration again. This
time I’m having problems with influencing codec selection on originating
(calling) channel. It looks like PJSIP_MEDIA_OFFER only works on
outbound (called) channel and has no affect on calling channel. My
experiments and function documentation (which says “Media and codec
offerings to be set on an outbound SIP
2018 Jun 16
2
Only 8kHz recorded after disallowing all but G722 codec on inbound
We want to record inbound channels at 16kHz, but send only 8kHz to our
peers. I've set our default profile in sip.conf to disallow all but g722,
and the peers disallow all but ulaw. We have a proxy in front of Asterisk
that is configured to disallow all but G722 also.
My test calls show inbound to the proxy is recorded at 16kHz, inbound in
Asterisk is only 8kHz, and the peers receive 8kHz. So
2013 Jul 27
1
Transcoding OPUS?
Hello,
I'd like to ask whether there is some documentation with recommended
parameters for transcoding voice codecs such as G722, G711a/u <-> Opus with
near-transparency.
My Idea is to have something like:
HW-Phone <-> Asterisk <---------> Asterisk <-> HW-Phone
(G722)
(Opus) (G722)
in order to lower the bandwidth between the two
2009 Oct 13
3
strange transcoding values
Hello guys,
i have a question about a voip gateway we use.
I saw those values typing in cli:
core show translation
g723 gsm ulaw alaw g726aal2 adpcm slin lpc10 g729 speex ilbc g726 g722 slin16
g723 - - - - - - - - - - - - - -
gsm - - 2001 2001 6000 2001 2000 16000 - 34002 - 6000
2014 May 12
1
new install: no re-invite and unwanted transcoding
I am unable to get re-invite to work on a new system. Also, unwanted
transcoding is occurring on PSTN calls.
The new system (FreePBX 2.11.0.37, Asterisk 11.9.0, CentOS 6.5) will
eventually replace an old system (FreePBX 2.8.1, Asterisk 1.8.7.2,
CentOS 5.8) currently in production. Both systems are on VPS with public
IP addresses. Goals for the new system include: HD (g722) connections on
2023 Jul 05
1
Setting codec on originating (calling) channel with chan_pjsip (SIP_CODEC_INBOUND equivalent)
Well, I'm trying to migrate to chan_pjsip so that I don't have to do that.
It's so surprising that the issue so seemingly obvious and trivial
hasn't been addressed yet that I wanted to query the collective wisdom
of this list to verify my observations.
Thanks for github pointer.
Michael
On 7/5/23 16:46, asterisk at phreaknet.org wrote:
> On 7/5/2023 4:19 PM, Michael
2011 Apr 21
1
Transcode ulaw/g722 problem
We are getting the following on 1.8.3 and 1.8.4-rc2, HELP!
Why is Asterisk unable to transcode to/from ulaw and g722?
[2011-04-21 09:51:34] WARNING[22067]: chan_sip.c:6064 sip_write: Asked to transmit frame type ulaw, while native formats is 0x1000 (g722) read/write = 0x1000 (g722)/0x1000 (g722)
[2011-04-21 09:51:34] WARNING[22067]: chan_sip.c:6064 sip_write: Asked to transmit frame type ulaw,
2010 Feb 16
1
CODECS: Best practice question: Avoid transcode when calling out?
What is the current best practice to avoid transcoding on an outgoing call
to a
party whose codec preference is not known in advance?
In other words, incoming calls are easy since codecs are negotiated from
least-known (the remote party) to most-known (my endpoint) and my codecs can
simply be preferred accordingly to match the remote.
Outbound calls seem harder. Our endpoints always negotiate
2003 Jun 23
2
Sip too many open files?
Today my pbx stopped responding to my sip phones..
looking into the log, here what I got:
Jun 23 15:50:05 WARNING[7176]: File rtp.c, Line 586 (ast_rtp_new):
Unable to allocate socket: Too many open files
Jun 23 15:50:05 WARNING[7176]: File chan_sip.c, Line 1308 (sip_alloc):
Unable to create RTP session: Too many open files
Jun 23 15:50:05 WARNING[7176]: File chan_sip.c, Line 4655
2023 Jul 06
1
Setting codec on originating (calling) channel with chan_pjsip (SIP_CODEC_INBOUND equivalent)
Hello,
After I have re-read the "PJSIP Advanced Codec negotiation" document, it
occurred to me that the desired behavior should actually happen
automatically, just due to the codec negotiation logic, but it looks
like asterisk doesn't actually follow the described logic which is
likely a bug.
Can you please follow with me through a simple sip call and see if I'm
missing
2011 May 04
1
asterisk 1.4.35 to 1.4.41
Under 1.4.35 I get this message printed MANY times
[May 3 21:41:21] WARNING[21567] chan_sip.c: Asked to transmit frame
type 4, while native formats is 0x1000 (g722)(4096) read/write = 0x1000
(g722)(4096)/0x1000 (g722)(4096)
[May 3 21:41:21] WARNING[21567] chan_sip.c: Asked to transmit frame
type 4, while native formats is 0x1000 (g722)(4096) read/write = 0x1000
(g722)(4096)/0x1000
2017 May 12
3
pjsip: asterisk can't decide which codec to use
Hello!
I'm facing completely choppy sound. The wireshark trace shows, that
there are a lot of codec changes without any trigger (means no options
or reinvite or any other package).
Background:
The call is initiated by asterisk and is received by the same asterisk
conference room via
Phone extension -> asterisk -> provider A -> provider B -> asterisk.
Asterisk initially sends
2006 Apr 19
2
Unable to allocate socket: Too may open files
Hello,
we are curently benchmarking an asterisk system
1034 sip users are logged into this system and the test software is
trying to establish 400 concurrent calls.
In the CLI I see the following messages:
Apr 19 14:20:51 WARNING[4045]: rtp.c:911 ast_rtcp_new: Unable to
allocate socket: Too many open files
Apr 19 14:20:51 WARNING[4045]: acl.c:306 ast_ouraddrfor: Cannot create
socket
Apr 19
2008 Feb 07
6
Asterisk G722
Hello,
I have some problems to use G722, when my client sent an invite request
to asterisk using G722/16000 codec
asterisk respond with G722/8000 codec.
I dont know exactly if Asterisk supports G722/16000 codec??
If yes how can I activate It??
Thanks.
Rachid.
Below wireshak trace:
2010 Feb 08
3
High codec translation times on x64
Hi Users,
I was wondering if someone of you have the same thing on CentOS 64x?
asterisk01*CLI> core show translation
Translation times between formats (in microseconds) for one
second of data
Source Format (Rows) Destination Format (Columns)
g723 gsm ulaw alaw g726aal2 adpcm slin lpc10 g729
speex ilbc g726 g722 siren7 siren14 slin16
g723
2006 Nov 04
1
Pass through
Hi!
I want to tell asterisk to simply pass-through any codecs that my phones
support. I have to use codecs that are not popular and implemented by a
third-party, asterisk has nothing to do with them.
I've made a test with g722 (that asterisk doesn't support), i've set all my
two snom 300 phones to support only g722 and asterisk declined the sip
invitation. That is bad for me. Is it
2010 Jun 26
2
Codec negotiation
I have Polycom phones that support the g722 codec. Adding allow=g722
to the [general] section of sip.conf works great and I can make calls
between the phones using g722. However Asterisk is negotiating g722
for calls going out my voip provider and transcoding these to ulaw. In
sip.conf for the provider I have deny=all and allow=ulaw. This can
cause potential audio degrading and wastes cpu cycles.
2009 Apr 30
3
need help on asterisk call forwarding
Hello,
I am trying to enable call forwarding feature on asterisk 1.6.0.9 with
asterisk-gui. Sure there is no menu for that on gui but, when i try to
write some example scripts to extensions.conf to make it work. I totally
failed.
I dont wanna install smthing like freepbx etc on the system so, i need
help to add unconditional etc call forwarding feature for 1.6
Thanks