# Help cisco 2801 trunk isdn bri **URL:** \ **Category:** Asterisk Support\ **Created:** [May 10, 2021, 10:10pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570 "2021-05-10T22:10:31Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 10, 2021, 10:10pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/1 "2021-05-10T22:10:31Z")
necesito ayuda para integrar cisco isdn con asterisk. ---
**Author:** ![khamlichi.khalil](https://avatars.discourse-cdn.com/v4/letter/k/e274bd/32.png) [@khamlichi.khalil](https://community.asterisk.org/u/khamlichi.khalil)\ **Post date:** [May 11, 2021, 2:10am UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/2 "2021-05-11T02:10:44Z")
question was : I need help connecting to a cisco ISDN port 1/ vas a necesitar una carta isdn / you will need an E1/T1 Card [https://www.sangoma.com/telephony-cards/digital/](https://www.sangoma.com/telephony-cards/digital/) 2/ luego vas a configurarla / then configure it [https://support.digium.com/s/article/How-to-configure-a-Digium-E1-PRI-card](https://support.digium.com/s/article/How-to-configure-a-Digium-E1-PRI-card) ---
**Author:** ![khamlichi.khalil](https://avatars.discourse-cdn.com/v4/letter/k/e274bd/32.png) [@khamlichi.khalil](https://community.asterisk.org/u/khamlichi.khalil)\ **Post date:** [May 11, 2021, 2:35am UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/3 "2021-05-11T02:35:08Z")
I forgot your second option is to go for a device, [https://www.sangoma.com/voip-gateways/digital/](https://www.sangoma.com/voip-gateways/digital/) , Habia olvidado la segunda opcion : un aparato externo And for sake of completeness Besides those 2 options (internal card / external gateway) you could go for a sip trunk from a sip provider para ser completo , siempre puedes ir por un trunk sip con un proveedor voz ip ---
**Author:** ![Rmcgrath](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/rmcgrath/32/1780_2.png) [@Rmcgrath](https://community.asterisk.org/u/Rmcgrath)\ **Post date:** [May 11, 2021, 12:38pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/4 "2021-05-11T12:38:12Z")
> [@miguelgallegossilva](#): > > necesito ayuda para integrar cisco isdn con asterisk. Primera cuestión a saber, es que tipo de interface ISDN tiene instalado cisco 2801 (lo cual puede ser BRI o PRI), según que tipo de placa esta instalada en el cisco 2801. En tu Asterisk deberás también verificar en que hardare esta instalado (asterisk) y que tipo de slots este tiene a fin de ver que tipo de placa se debe de instalar físicamente para conectar contra el Cisco. Lo cual veras que hay cuestiones de hardware y software por lo que esto requiere de tiempo y paciencia por la parte de software puede que se complique por los módulos y dependencias según que distro tengas instalada por lo que la recomendación seria que lo haga o asista alguien en sitio con mas conocimiento e experiencia. ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [May 11, 2021, 12:43pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/5 "2021-05-11T12:43:50Z")
This is really a question for the hardware supplier, e.g. [Contact Us ⋆ Sangoma](https://www.sangoma.com/contact-us/) not for the open source software community. ---
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 11, 2021, 2:41pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/6 "2021-05-11T14:41:33Z")
CONFIGURACION ACTUAL DEL ROUTER CON CON VIC2-2BRI Y CARD PDVM2-8 Building configuration… Current configuration : 2252 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname CISCORDSI ! boot-start-marker boot-end-marker ! ! no aaa new-model clock timezone MET 1 clock summer-time METDST recurring last Sun Mar 2:00 last Sun Oct 3:00 network-clock-participate wic 0 network-clock-select 1 BRI0/0/0 dot11 syslog ip cef ! ! ! ! multilink bundle-name authenticated ! isdn switch-type basic-net3 ! voice-card 0 ! ! voice rtp send-recv ! voice service voip allow-connections h323 to h323 allow-connections h323 to sip allow-connections sip to h323 allow-connections sip to sip redirect ip2ip signaling forward unconditional sip bind control source-interface FastEthernet0/0 bind media source-interface FastEthernet0/0 ! ! voice class codec 1 codec preference 1 g711ulaw codec preference 2 g711alaw codec preference 3 g729r8 codec preference 4 g729br8 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! username rdsiserver privilege 15 password 0 xxxxxxxxxx archive log config hidekeys ! ! ! ! ! ! interface FastEthernet0/0 ip address 192.168.1.4 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface BRI0/0/0 no ip address isdn switch-type basic-net3 isdn point-to-point-setup isdn incoming-voice voice isdn static-tei 0 no isdn spoofing ! interface BRI0/0/1 no ip address isdn switch-type basic-net3 isdn point-to-point-setup ! ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 192.168.1.3 ! ! ip http server ip http authentication local ip http secure-server ! ! ! ! control-plane ! ! ! voice-port 0/0/0 ! voice-port 0/0/1 ! ! ! ! ! dial-peer voice 2 voip destination-pattern 0T voice-class codec 1 session protocol sipv2 session target ipv4:192.168.1.3:5060 session transport udp dtmf-relay rtp-nte ! dial-peer voice 1 pots preference 1 destination-pattern . port 0/0/0 forward-digits all ! ! gateway timer receive-rtp 1200 ! sip-ua no remote-party-id retry invite 4 retry response 4 retry bye 4 retry cancel 4 timers trying 1000 sip-server ipv4:192.168.1.3 ! ! line con 0 line aux 0 line vty 0 4 privilege level 15 login local transport input telnet ssh ! scheduler allocate 20000 1000 end ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [May 11, 2021, 2:54pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/7 "2021-05-11T14:54:58Z")
> [@miguelgallegossilva](#): > > isdn switch-type basic-net3 That looks like basic rate. You might want to start at [https://cdn.sangoma.com/wp-content/uploads/2016/12/bri-telephony-card-datasheet.pdf](https://cdn.sangoma.com/wp-content/uploads/2016/12/bri-telephony-card-datasheet.pdf) however, you really need to talk to the sales people, as there may be country specific details that cause problems, and very few people still use basic rate ISDN, so it is possible that the products are no longer available. ---
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 11, 2021, 3:12pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/8 "2021-05-11T15:12:57Z")
En asterisk ocurre esto: SIP/RDSI-OUT-00000004 is making progress passing it to SIP/2000-00000003 \> 0x7f201c0016e0 – Strict RTP switching to RTP target address 192.168.1.34:36720 as source \> 0x7f20000098d0 – Strict RTP switching to RTP target address 192.168.1.4:17988 as source \> 0x7f201c0016e0 – Strict RTP learning complete - Locking on source address 192.168.1.34:36720 \> 0x7f20000098d0 – Strict RTP learning complete - Locking on source address 192.168.1.4:17988 ---
**Author:** ![Rmcgrath](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/rmcgrath/32/1780_2.png) [@Rmcgrath](https://community.asterisk.org/u/Rmcgrath)\ **Post date:** [May 11, 2021, 3:17pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/9 "2021-05-11T15:17:46Z")
> [@miguelgallegossilva](#): > > isdn switch-type basic-net3 Por lo que según se ve en la configuración del cisco 2801 esta configurada para placas ISDN BRI (deberás ver también en la parte posterior del 2801 si están instaladas físicamente). Tu Asterisk esta corriendo sobre alguna maquina virtual??? de ser así te va resultar bastante mas complicado, en caso que no necesitaras instalar placas ISDN BRI (por lo que deberás ver, si dispone y que tipos de slots, a fin de ver si es factible de poder instalar placa alguna ISDN BRI), esto a nivel de hardware y después ver que distro esta corriendo para resolver según el tipo de placa los drivers. Vuelvo de repetir no es cosa y tarea simple por lo que mi sano consejos que contactes con algún distribuidor local que te provea las placas ISDN para asterisk y te brinde soporte. Si bien han comentado en ingles que este tipo de preguntas no es para una comunidad de software abierto (cuestión que no estoy de acuerdo, ya que entiendo que es para desarrolladores, que apoyan [Community ⋆ Asterisk](https://www.asterisk.org/community/#:~:text=The%20Asterisk%20Community&text=The%20Asterisk%20Community%20is%20made,adopted%20open%20source%20communications%20project.)) y respaldan Asterisk y no como una comunidad exclusivamente para software libre en fin ), pero si concuerdo que seria Sangoma la entidad que hoy ha adquirido a Digium y asterisk la que es la mejor opción para tu integración. ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [May 11, 2021, 3:29pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/10 "2021-05-11T15:29:14Z")
The policy of Digium and Sangoma has always been that they do not support such hardware on this forum. One of the reasons for that is that the forum is paid for from money that they make be selling ISDN and analogue hardware and they don’t want to let competitors avoid the cost of supporting their own customers by relying on the forum, instead. Therefore the standard response on questions about such hardware (and DAHDI) is to refer to the support channels for the commercial hardware. I don’t believe that this policy has changed, although someone from Sangoma can always challenge me, if it has. There is also the point that this is a rather specialist question. ---
**Author:** ![Rmcgrath](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/rmcgrath/32/1780_2.png) [@Rmcgrath](https://community.asterisk.org/u/Rmcgrath)\ **Post date:** [May 11, 2021, 3:29pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/11 "2021-05-11T15:29:39Z")
Que placa tienes instalada?? Sangoma digium o generica?? ---
**Author:** ![Rmcgrath](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/rmcgrath/32/1780_2.png) [@Rmcgrath](https://community.asterisk.org/u/Rmcgrath)\ **Post date:** [May 11, 2021, 3:48pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/12 "2021-05-11T15:48:35Z")
Esto se refiere a otro problema fuera del ISDN mas parece un bloqueo de los paquetes por algún firewall entre los paquete ISDN y los RTP de las direcciónes 192.168.1.xxx ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [May 11, 2021, 4:45pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/13 "2021-05-11T16:45:27Z")
> [@miguelgallegossilva](#): > > En asterisk ocurre esto: > SIP/RDSI-OUT-00000004 is making progress passing it to SIP/2000-00000003 > > > 0x7f201c0016e0 – Strict RTP switching to RTP target address 192.168.1.34:36720 as source > > 0x7f20000098d0 – Strict RTP switching to RTP target address 192.168.1.4:17988 as source > > 0x7f201c0016e0 – Strict RTP learning complete - Locking on source address 192.168.1.34:36720 > > 0x7f20000098d0 – Strict RTP learning complete - Locking on source address 192.168.1.4:17988 1. there is no ISDN involvement here. 2. there is no indication that anything is wrong, here. ---
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 11, 2021, 8:46pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/14 "2021-05-11T20:46:29Z")
> [@david551](#): > > - there is no ISDN involvement here. > - there is no indication that anything is wrong, here. Tengo un PC Dell con asterisk 16 reléase. Un router cisco 2801 con tarjeta BRI y Modulo voice 8 canales. Para un proyecto personal de formación en asterisk, no puedo recurrir a una tarjeta ISDN Digium por dos motivos sencillos primero porque el PC soporta PCI de perfil bajo segundo para buscar la compatibilidad de otra plataforma aunque que estoy muy lejos del objetivo. Por la poca formación e información que tengo mi problema está en la configuración en alguno de los dispositivos o en los dos… ---
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 11, 2021, 8:49pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/15 "2021-05-11T20:49:50Z")
El firewall esta desactivado tanto en centos como el el router, tengo conectividad entre ambos equipos. ---
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 11, 2021, 9:19pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/16 "2021-05-11T21:19:13Z")
> [@david551](#): > > The policy of Digium and Sangoma has always been that they do not support such hardware on this forum. One of the reasons for that is that the forum is paid for from money that they make be selling ISDN and analogue hardware and they don’t want to let competitors avoid the cost of supporting their own customers by relying on the forum, instead. Therefore the standard response on questions about such hardware (and DAHDI) is to refer to the support channels for the commercial hardware. I don’t believe that this policy has changed, although someone from Sangoma can always challenge me, if it has. > > There is also the point that this is a rather specialist question. Entiendo perfectamente el punto de vista expuesto pero como dije es un proyecto personal sin ningún interés comercial y por esta razón los dispositivos utilizados son considerados chatarra. Hace varios años me hablaron de asterisk y ahora me interesa seriamente saber más del software libre creado por Digium, pero si no es posible con el material que tengo a mano no hay ningún problema buscare otras soluciones para continuar el proyecto con asterisk. ---
**Author:** ![Rmcgrath](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/rmcgrath/32/1780_2.png) [@Rmcgrath](https://community.asterisk.org/u/Rmcgrath)\ **Post date:** [May 11, 2021, 9:30pm UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/17 "2021-05-11T21:30:13Z")
> [@miguelgallegossilva](#): > > PC Dell con asterisk 16 reléase. He visto la respuesta tanto a mi pregunta como la de david551 por lo que es difícil de poder responderte concretamente y evitar generar confusiones. Por lo que (en mi caso me cuesta entender el esquema que estas trabajando) ya que en la respuesta de david551 haces mención “primero porque el PC soporta PCI de perfil bajo” lo que te pregunto que tarjeta ISDN BRI tiene instalada el PC Dell con asterisk 16 reléase. ??? Así mismo pregunto sobre aque apunta el proyecto si tenes un diagrama de conexión?? ademas si en el router esta configurado ISDN Voice Configuration a algún destino??? ---
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 12, 2021, 3:18am UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/18 "2021-05-12T03:18:05Z")
Lamento no haber sido mas claro: el router cisco tiene insertada una tarjeta BRI(vic2-2Bri) que a su vez esta conectada a la red publica ISDN el router cisco esta conectado via lan(fastethernet 0/0) a un switch simple. el PC Dell esta conectado via Lan(eth0) al mismo switch simple. los teléfonos sip están conectados via lan al mismo switch simple. La idea es crear TRUNK SIP entre asterisk y cisco router para realizar y recibir llamadas desde la red publica. ---
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 12, 2021, 3:22am UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/19 "2021-05-12T03:22:23Z")
perfil bajo del pci es por en ancho de la tarjeta BRI de Digium con resperto a la ranura del PC Dell que mas angosto. ---
**Author:** ![miguelgallegossilva](https://avatars.discourse-cdn.com/v4/letter/m/c2a13f/32.png) [@miguelgallegossilva](https://community.asterisk.org/u/miguelgallegossilva)\ **Post date:** [May 12, 2021, 8:00am UTC](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570/20 "2021-05-12T08:00:16Z")
``` ###################### #asterisk 192.168.1.3 # ###################### | | | | | | ####################### # switch simple # ####################### | | | | | | | | | | ####################### ################# #router cisco 2801 con # # telefono ip # # ip 192.168.1.4 # # agente sip # # card isdn BRI vic2 # ################# ####################### | | | | red publica ISDN ``` [Next page](https://community.asterisk.org/t/help-cisco-2801-trunk-isdn-bri/88570.md?page=2)