[Asterisk-Users] dtmf problem

[asterisk-users at ecessor.com]

Bart,

We have has similar issues with BroadVoice in the past. From what I
understand they had problems with DTMF depending on which proxy you register
to. This is a bug that related to their session border controllers which
should have been resolved.

Looking at your config your first each account registers to a different BV
POP (the IP address is of the first is different to the second account). 

Suggest the following course of action.

1. Try pinging each of the following BroadVoice POPs to find which is
closest to you.
proxy.nyc.broadvoice.com
proxy.dca.broadvoice.com
proxy.bos.broadvoice.com
proxy.chi.broadvoice.com
proxy.lax.broadvoice.com
proxy.mia.broadvoice.com

2. Change your /etc/hosts file to so that the IP of the nearest POP from the
list above is mapped to hostname sip.broadvoice.com

NOTE: They did have problems with their LAX POP for DTMF.

3. Change your config file so all host entries point to sip.broadvoice.com
instead of the 147.135.X.X IP address you're using at present! It make
easier to make a single change to the /etc/hosts file for testing in future.

4. Change your DTMF mode from inband to rfc2833. BroadVoice does support
out-of-band DTMF signalling, though their website is out of date.

i.e. dtmfmode=rfc2833

5. You may want to check that your second "register =>" statement is on a
new line in your config file! ;-)

We have out-of-band DTMF working properly across 6 separate BV accounts and
register to their proxy.nyc.broadvoice.com POP without problems.

As an FYI, BroadVoice also seem to unofficially support G729, iLBX and G726
codecs. If bandwidth is a problem I suggest trying out G726. We've been
using G726 instead of G711u for the past week and have been impressed with
the results

Regards

Neil/


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Bartosz
Wegrzyn - asterisk
Sent: Tuesday, December 20, 2005 8:31 PM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] dtmf problem


hi everyone,

I do have 2 lines with broadvoice.
>From 2 days on one line my dtmf tones are not passed to asterisk server.
It siply goes through the extensions routine acting link it did not receive
any tone. Could it be problem with my config???

It looks like this:(it worked for last 1.5 year)
num2 is ok, but num1 is not working.

Any ideas before I call support which is always a problem.

[general]
externip=lexon.ws
bindaddr = 192.168.1.251
port=5060
localnet=192.168.1.0/255.255.255.0
disallow=all
allow=ulaw
register => number1:pass1 at sip.broadvoice.com register =>
number2:pass2 at sip.broadvoice.com/2000
tos=0x18
srvlookup=yes
nat=never
insecure=yes

[sip.broadvoice.com]
type=peer
username=num1
fromuser=num1
authuser=num1
secret=pass1
host=sip.broadvoice.com
context=sip
fromdomain=sip.broadvoice.com
canreinvite=no
nat=never
dtmfmode=inband


[sip.broadvoice.com.home]
type=peer
username=num2
fromuser=num2
authuser=num3
secret=pass2
host=sip.broadvoice.com
context=sip
fromdomain=sip.broadvoice.com
canreinvite=no
nat=never
dtmfmode=inband

[broadvoice-incoming]
type=peer
host=147.135.8.128
context=from-broadvoice
qualify=yes
canreinvite=no
disallow=all
allow=ulaw
nat=never

[broadvoice-incoming2]
type=peer
host=147.135.0.128
context=from-broadvoice
qualify=yes
canreinvite=no
disallow=all
allow=ulaw
nat=never

[broadvoice-incoming3]
type=peer
host=147.135.4.128
context=from-broadvoice
qualify=yes
canreinvite=no
disallow=all
allow=ulaw
nat=never

thx

Bart Wegrzyn




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