Provisionamiento en Kazoo

Espere pronto documentacion oficial, disponible hacia nuevos clientes

Verizon Caught Blocking VoIP Traffic

I was just on a phone call with a new customer who is setting up multiple retail locations.  The reason for the call was their backup network wasn’t working.  Whenever they tested the Verizon 4G LTE Wireless connected to Cradlepoint modem backup network, the phones would not be able to make or receive phone calls.
Their IT staff was on the line and they were running Wireshark and grabbed a PCAP that seems to show that OnSIP at 199.7.175.101 was responding to their request with a “500 Server Error”.



The actual text was:
SIP/2.0 500 Server Internal Error
Warning: 399 sipalg “Internal Error”
Call-ID: b876f6fb4aad25a55546217e07dd4f82
CSeq: 47 REGISTER
From: “Store 032” ;tag=50A423BA-17AAB00B
To: ;tag=s772+1+41390005+52871245
Via: SIP/2.0/UDP 10.2.32.238:6050;received=174.201.22.7;rport=9710;branch=z9hG4bKd5770b4F5466015
Content-Length: 0
The only problem was that the packet did not come from OnSIP.  The smoking gun in the second line which references the “sipalg”.  Even though the PCAP shows the packet as coming from OnSIP, it really comes from the Verizon SIP ALG running on their network or running on the Cradlepoint router.
Not only are they blocking the traffic, but they’re making it look like the provider is actually the one refusing it.  At least if you’re going to block traffic, let everyone know who is doing it.
HTTP traffic from the same device to the same network goes through without an issue, only the SIP traffic is refused.
Is this the future of Net Neutrality?  We saw this behavior a few years ago and it appears to still be an issue.

Fuente original: http://www.un-ceo.com/2017/07/19/verizon-caught-blocking-voip-traffic/?utm_content=58253975&utm_medium=social&utm_source=twitter

Instalando freeswitch en netbsd 8.0.

 

Una vez Instalado NetBSD 8.0 Beta y configurarle el servicio de ssh; procederemos a ingresar  para instalar pkgsrc, en el momento  de redactar esta documentacion, no se han lanzado oficialmente los paquetes binarios para las dependencias, instalables por pkgin; por lo que procederemos a compilar.

Ejecutamos el comando para obtener pkgsrc, en este caso a traves de CVS.

Compilamos las siguientes dependencias:

git automake autoconf libtool gmake jpeg  pcre speex openssl ncurses sqlite3 ldns speex speexdsp srtp libopus
  
Tomando en cuenta de cambiar al directorio de /usr/pkgsrc//  y ejecutar make install a cada uno de estos.

 Ejecutamos el comando mozilla-rootcerts install, con el proposito de hacer posible las  conexiones  ssl
 

Ahora nos toca obtener el codigo fuente de freeswitch:

git clone https://stash.freeswitch.org/scm/fs/freeswitch.git

 Exportamos las siguientes variables:

CC=gcc
LD_LIBRARY_PATH="/usr/pkg/lib"
export LDFLAGS="-L/usr/pkg/lib -I/usr/pkg/include"
CFLAGS="-Wno-error -std=gnu99"

Luego iniciamos el proceso de compilacion

cd freeswitch















./bootstrap.sh -j
./configure --prefix=/usr/pkg
gmake

Nos lanzara un error en la seccion de srtp, por lo que  cambiamos al directorio




cd libs/srtp/

vi Makefile 
reemplazar std=c99 por std=gnu99

cd crypto  vi Makefile -- borrar -std=c99

Modificamos la linea INCDIR, agregandole -I/usr/pkg/include/srtp




INCDIR  = -Iinclude -I$(srcdir)/include  -I/usr/pkg/include/srtp

Regresamos al directorio anterior y ejecutar nuevamente gmake
Cambiar al directorio principal de freeswitch y ejecutar gmake

Al final de la compilacion mostrara el logo azul, no obstante se requiere otro ajuste:

cd libs/sofia-sip/libsofia-sip-ua ; cd tport
vi ws.c --
Cambiamos __bswap_64(val) por (val) en las dos lineas para luego correr  gmake en ese mismo directorio

Retornamos al directorio principal de freeswitch
Ejecutamos gmake install hd-sounds-install hd-music-install

Con estos pasos ya disponemos de una instalacion de freeswitch en netbsd

FreeSWITCH corriendo en NetBSD 8.0

Finalmente logre instalar y configurar correctamente a freeswitch en un entorno NetBSD 8.0. Espere pronto la documentacion oficial.

Anuncio especial de FreeSWITCH, nuevos cambios para el proyecto [Video]