Re: [asterisk-users] asterisk 11.7.0: Delayed audio

2014-01-17 Thread gm1

On 01/13/2014 10:09 AM, gm1 wrote:

On 01/10/2014 08:33 PM, gm1 wrote:

On 01/10/2014 04:01 PM, Matthew Jordan wrote:
On Fri, Jan 10, 2014 at 9:45 AM, gm1 g...@curtissystemssoftware.com 
wrote:

On connection to an incoming call via PSTN where
asterisk [11.7.0] is Dialing an internal extension
on answering the call there is about 6-7 seconds before
audio is heard on either side.


When looking at the CLI traces when I answer the incoming call that 
asterisk

extensions were dialing, I see immediately upon answering

0xhexnumber -- Probation passed - setting RTP source address to
192.168.1.11:portnumber

then not until about 6 seconds later I see this

0xhexnumber -- Probation passed - setting RTP source address to
192.168.1.11:diffportnumber

and immediately hear audio

what appears to be an issue is that the RTP link(audio) setup is 
delayed.



Anyone have suggestions on how to fix this issue?


If the RTP source address/port is changing, then Asterisk is receiving
RTP packets from two different sources and is waiting for one of them
to stabilize before it picks the actual source of the media stream.
That's by design, as the locking in of the RTP source prevents a
media injection attack.

You can tweak how Asterisk does this using two settings in rtp.conf:

; Enable strict RTP protection. This will drop RTP packets that
; do not come from the source of the RTP stream. This option is
; enabled by default.
; strictrtp=yes

; Number of packets containing consecutive sequence values needed
; to change the RTP source socket address. This option only comes
; into play while using strictrtp=yes. Consider changing this value
; if rtp packets are dropped from one or both ends after a call is
; connected. This option is set to 4 by default.
; probation=8

Matt


Matt,

What if any risk do i have with setting strictrtp=no
with nat=no on a local network i.e.: 192.168.1.x  ?

pc


I changed strictrtp=no and restarted asterisk,
no difference in delayed audio ... still near 6 seconds.
In cli when I answer the incoming call I see asterisk immediately show 
answer.


Perhaps this issue is caused by something other than the strictrtp 
setting?


what are all the possible settings for strictrtp=???


we have yet no resolution ...
Does any one have any suggestions where to place some printf s to 
understand after a call is answered

what is delaying the audio ?  I am building source 11.7.0


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Re: [asterisk-users] asterisk 11.7.0: Delayed audio

2014-01-17 Thread Gerard Saraber
I wanted to chime in on this one, I posted a similar problem a while
back under the heading Delay before audio starts on 2/26/2013

My solution to fix this problem was to adjust my dialplan by inserting
an Answer(); 
So I don't think it necessarily has something to do with the strictrtp
setting.

-Gerard

On Fri, 2014-01-10 at 15:01 -0600, Matthew Jordan wrote:
 On Fri, Jan 10, 2014 at 9:45 AM, gm1 g...@curtissystemssoftware.com wrote:
  On connection to an incoming call via PSTN where
  asterisk [11.7.0] is Dialing an internal extension
  on answering the call there is about 6-7 seconds before
  audio is heard on either side.
 
 
  When looking at the CLI traces when I answer the incoming call that asterisk
  extensions were dialing, I see immediately upon answering
 0xhexnumber -- Probation passed - setting RTP source address to
  192.168.1.11:portnumber
  then not until about 6 seconds later I see this
 0xhexnumber -- Probation passed - setting RTP source address to
  192.168.1.11:diffportnumber
  and immediately hear audio
 
  what appears to be an issue is that the RTP link(audio) setup is delayed.
 
 
  Anyone have suggestions on how to fix this issue?
 
 
 If the RTP source address/port is changing, then Asterisk is receiving
 RTP packets from two different sources and is waiting for one of them
 to stabilize before it picks the actual source of the media stream.
 That's by design, as the locking in of the RTP source prevents a
 media injection attack.
 
 You can tweak how Asterisk does this using two settings in rtp.conf:
 
 ; Enable strict RTP protection. This will drop RTP packets that
 ; do not come from the source of the RTP stream. This option is
 ; enabled by default.
 ; strictrtp=yes
 
 ; Number of packets containing consecutive sequence values needed
 ; to change the RTP source socket address. This option only comes
 ; into play while using strictrtp=yes. Consider changing this value
 ; if rtp packets are dropped from one or both ends after a call is
 ; connected. This option is set to 4 by default.
 ; probation=8
 
 Matt
 
 -- 
 Matthew Jordan
 Digium, Inc. | Engineering Manager
 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
 Check us out at: http://digium.com  http://asterisk.org
 

-- 
Gerard Saraber gsara...@rarcoa.com
Rarcoa, Inc.


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Re: [asterisk-users] asterisk 11.7.0: Delayed audio

2014-01-13 Thread gm1

On 01/10/2014 08:33 PM, gm1 wrote:

On 01/10/2014 04:01 PM, Matthew Jordan wrote:
On Fri, Jan 10, 2014 at 9:45 AM, gm1 g...@curtissystemssoftware.com 
wrote:

On connection to an incoming call via PSTN where
asterisk [11.7.0] is Dialing an internal extension
on answering the call there is about 6-7 seconds before
audio is heard on either side.


When looking at the CLI traces when I answer the incoming call that 
asterisk

extensions were dialing, I see immediately upon answering

0xhexnumber -- Probation passed - setting RTP source address to
192.168.1.11:portnumber

then not until about 6 seconds later I see this

0xhexnumber -- Probation passed - setting RTP source address to
192.168.1.11:diffportnumber

and immediately hear audio

what appears to be an issue is that the RTP link(audio) setup is 
delayed.



Anyone have suggestions on how to fix this issue?


If the RTP source address/port is changing, then Asterisk is receiving
RTP packets from two different sources and is waiting for one of them
to stabilize before it picks the actual source of the media stream.
That's by design, as the locking in of the RTP source prevents a
media injection attack.

You can tweak how Asterisk does this using two settings in rtp.conf:

; Enable strict RTP protection. This will drop RTP packets that
; do not come from the source of the RTP stream. This option is
; enabled by default.
; strictrtp=yes

; Number of packets containing consecutive sequence values needed
; to change the RTP source socket address. This option only comes
; into play while using strictrtp=yes. Consider changing this value
; if rtp packets are dropped from one or both ends after a call is
; connected. This option is set to 4 by default.
; probation=8

Matt


Matt,

What if any risk do i have with setting strictrtp=no
with nat=no on a local network i.e.: 192.168.1.x  ?

pc


I changed strictrtp=no and restarted asterisk,
no difference in delayed audio ... still near 6 seconds.
In cli when I answer the incoming call I see asterisk immediately show 
answer.


Perhaps this issue is caused by something other than the strictrtp setting?

what are all the possible settings for strictrtp=???


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[asterisk-users] asterisk 11.7.0: Delayed audio

2014-01-10 Thread gm1

On connection to an incoming call via PSTN where
asterisk [11.7.0] is Dialing an internal extension
on answering the call there is about 6-7 seconds before
audio is heard on either side.


When looking at the CLI traces when I answer the incoming call that 
asterisk extensions were dialing, I see immediately upon answering
0xhexnumber -- Probation passed - setting RTP source address to 
192.168.1.11:portnumber

then not until about 6 seconds later I see this
0xhexnumber -- Probation passed - setting RTP source address to 
192.168.1.11:diffportnumber

and immediately hear audio

what appears to be an issue is that the RTP link(audio) setup is delayed.


Anyone have suggestions on how to fix this issue?

pc


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Re: [asterisk-users] asterisk 11.7.0: Delayed audio

2014-01-10 Thread Matthew Jordan
On Fri, Jan 10, 2014 at 9:45 AM, gm1 g...@curtissystemssoftware.com wrote:
 On connection to an incoming call via PSTN where
 asterisk [11.7.0] is Dialing an internal extension
 on answering the call there is about 6-7 seconds before
 audio is heard on either side.


 When looking at the CLI traces when I answer the incoming call that asterisk
 extensions were dialing, I see immediately upon answering
0xhexnumber -- Probation passed - setting RTP source address to
 192.168.1.11:portnumber
 then not until about 6 seconds later I see this
0xhexnumber -- Probation passed - setting RTP source address to
 192.168.1.11:diffportnumber
 and immediately hear audio

 what appears to be an issue is that the RTP link(audio) setup is delayed.


 Anyone have suggestions on how to fix this issue?


If the RTP source address/port is changing, then Asterisk is receiving
RTP packets from two different sources and is waiting for one of them
to stabilize before it picks the actual source of the media stream.
That's by design, as the locking in of the RTP source prevents a
media injection attack.

You can tweak how Asterisk does this using two settings in rtp.conf:

; Enable strict RTP protection. This will drop RTP packets that
; do not come from the source of the RTP stream. This option is
; enabled by default.
; strictrtp=yes

; Number of packets containing consecutive sequence values needed
; to change the RTP source socket address. This option only comes
; into play while using strictrtp=yes. Consider changing this value
; if rtp packets are dropped from one or both ends after a call is
; connected. This option is set to 4 by default.
; probation=8

Matt

-- 
Matthew Jordan
Digium, Inc. | Engineering Manager
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: http://digium.com  http://asterisk.org

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Re: [asterisk-users] asterisk 11.7.0: Delayed audio

2014-01-10 Thread gm1

On 01/10/2014 04:01 PM, Matthew Jordan wrote:

On Fri, Jan 10, 2014 at 9:45 AM, gm1 g...@curtissystemssoftware.com wrote:

On connection to an incoming call via PSTN where
asterisk [11.7.0] is Dialing an internal extension
on answering the call there is about 6-7 seconds before
audio is heard on either side.


When looking at the CLI traces when I answer the incoming call that asterisk
extensions were dialing, I see immediately upon answering

0xhexnumber -- Probation passed - setting RTP source address to
192.168.1.11:portnumber

then not until about 6 seconds later I see this

0xhexnumber -- Probation passed - setting RTP source address to
192.168.1.11:diffportnumber

and immediately hear audio

what appears to be an issue is that the RTP link(audio) setup is delayed.


Anyone have suggestions on how to fix this issue?


If the RTP source address/port is changing, then Asterisk is receiving
RTP packets from two different sources and is waiting for one of them
to stabilize before it picks the actual source of the media stream.
That's by design, as the locking in of the RTP source prevents a
media injection attack.

You can tweak how Asterisk does this using two settings in rtp.conf:

; Enable strict RTP protection. This will drop RTP packets that
; do not come from the source of the RTP stream. This option is
; enabled by default.
; strictrtp=yes

; Number of packets containing consecutive sequence values needed
; to change the RTP source socket address. This option only comes
; into play while using strictrtp=yes. Consider changing this value
; if rtp packets are dropped from one or both ends after a call is
; connected. This option is set to 4 by default.
; probation=8

Matt


Matt,

What if any risk do i have with setting strictrtp=no
with nat=no on a local network i.e.: 192.168.1.x  ?

pc

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