[Asterisk] Connecting Asterisk PBXs to a SmartNode Patton 4960 Voice Gateway with Full Failover Features

28 January 2011 0 Comments

[Asterisk] Connecting Asterisk PBXs to a SmartNode Patton 4960 Voice Gateway with Full Failover Features

The better way to interconnect your Asterisk based PBXs to the PSTN infrastructure is by a dedicated Voice Gateway.
Thanks to, your telephony infrastructure, will benefit of a rich bunch of features:

Dedicated DSP equipment.
Powerful transcoding capabilities.
Advanced call-routing.
Failover & Load Balancing.

Many of above were unable to deploy by a PCI Card!!!

With the following configuration you’re able to build a completely fault tolerant architecture with a single point of failure (represented by patton itself):

cli version 3.20
clock local default-offset +00:00
dns-relay
webserver port 80 language en
sntp-client
sntp-client server primary <NTP SERVER ip> port 123 version 4
system hostname tectton-primario
 
system
 
  ic voice 0
 
system
  clock-source 1 e1t1 0 0
 
profile r2 default
 
profile napt NAPT_WAN
 
profile ppp default
 
profile call-progress-tone IT_Dialtone
  play 1 200 425 -12
  pause 2 200
  play 3 600 425 -12
  pause 4 1000
 
profile call-progress-tone IT_Alertingtone
  play 1 1000 425 -12
  pause 2 4000
 
profile call-progress-tone IT_Busytone
  play 1 500 425 -12
  pause 2 500
 
profile tone-set default
profile tone-set IT
  map call-progress-tone dial-tone IT_Dialtone
  map call-progress-tone ringback-tone IT_Alertingtone
  map call-progress-tone busy-tone IT_Busytone
  map call-progress-tone release-tone IT_Busytone
  map call-progress-tone congestion-tone IT_Busytone
 
profile voip default
  codec 1 g711alaw64k rx-length 20 tx-length 20
  codec 2 g711ulaw64k rx-length 20 tx-length 20
  dtmf-relay rtp
  rtp traffic-class local-default
  dejitter-max-delay 200
  fax transmission 1 bypass g711alaw64k
  fax transmission 2 bypass g711ulaw64k
  fax transmission 3 relay t38-udp
  fax redundancy low-speed 2 high-speed 1
  fax volume -10.0
  fax dejitter-max-delay 300
  fax bypass-method nse
  modem transmission 1 bypass g711alaw64k
  modem transmission 2 bypass g711ulaw64k
  no modem detection on-remote-fax-request
  modem bypass-method v150-vbd
 
profile pstn default
  no echo-canceler-nlp
  no echo-canceler
 
profile sip default
  no autonomous-transitioning
 
profile dhcp-server DHCPS_LAN
  network <NETWORK IP> <NETWORK MASK>
  include 1 <DHCP START> <DHCP END>
  lease 2 hours
  default-router 1 <GATEWAY IP>
  domain-name-server 1 <DNS SERVER>
 
profile aaa default
  method 1 local
  method 2 none
 
context ip router
 
  interface WAN
    ipaddress <WAN IP ADDRESS> <WAN NETMASK>
    use profile napt NAPT_WAN
    tcp adjust-mss rx mtu
    tcp adjust-mss tx mtu
 
  interface LAN
    ipaddress <LAN IP ADDRESS> <LAN NETMASK>
    tcp adjust-mss rx mtu
    tcp adjust-mss tx mtu
 
context ip router
  route 0.0.0.0 0.0.0.0 <GATEWAY IP> 0
 
context cs switch
  no digit-collection timeout
  no digit-collection terminating-char
  national-prefix 0
  international-prefix 00
 
  routing-table called-e164 RT_TO_SIP
    route default dest-service INBOUND
 
  routing-table called-e164 SIP_TO_RT
    route default dest-service OUTBOUND
 
  interface isdn IF_ISDN
    route call dest-table RT_TO_SIP
    use profile tone-set IT
    caller-name send-information-following
    inband-info accept force call-setup setup
 
  interface isdn IF_ISDN_BACKUP
    route call dest-table RT_TO_SIP
    use profile tone-set IT
    caller-name send-information-following
    inband-info accept force call-setup setup
 
  interface sip IF_SIP
    bind context sip-gateway GW_SIP
    route call dest-table SIP_TO_RT
    remote <ASTERISK IP> 5060
    early-disconnect
 
  interface sip IF_SIP_BACKUP
    bind context sip-gateway GW_SIP
    route call dest-interface IF_ISDN
    remote <ASTERISK BACKUP IP> 5061
    early-disconnect
 
  service hunt-group OUTBOUND
    drop-cause normal-unspecified
    drop-cause no-circuit-channel-available
    drop-cause network-out-of-order
    drop-cause temporary-failure
    drop-cause switching-equipment-congestion
    drop-cause access-info-discarded
    drop-cause circuit-channel-not-available
    drop-cause resources-unavailable
    route call 1 dest-interface IF_ISDN
    route call 2 dest-interface IF_ISDN_BACKUP
 
  service hunt-group INBOUND
    drop-cause normal-unspecified
    drop-cause no-circuit-channel-available
    drop-cause network-out-of-order
    drop-cause temporary-failure
    drop-cause switching-equipment-congestion
    drop-cause access-info-discarded
    drop-cause circuit-channel-not-available
    drop-cause resources-unavailable
    route call 1 dest-interface IF_SIP
    route call 2 dest-interface IF_SIP_BACKUP
 
context cs switch
  no shutdown
 
authentication-service AUTH_OB
  realm 1 asterisk
  username <ASTERISK USERID> password <ASTERISK PASSWORD> encrypted
 
location-service ASTERISK
  domain 1 <ASTERISK IP>
 
  identity <ASTERISK USER>
 
    authentication outbound
      authenticate 1 authentication-service AUTH_OB username <ASTERISK USER>
 
    registration outbound
      registrar <ASTERISK IP> 5060
      lifetime 3600
      register auto
      retry-timeout on-system-error 10
      retry-timeout on-client-error 10
      retry-timeout on-server-error 10
 
    call outbound
 
location-service ASTERISK_BACKUP
  domain 1 <ASTERISK BACKUP IP>
 
  identity <ASTERISK USER>
 
    authentication outbound
      authenticate 1 authentication-service AUTH_OB username <ASTERISK USER>
 
    registration outbound
      registrar <ASTERISK BACKUP IP> 5060
      lifetime 3600
      register auto
      retry-timeout on-system-error 10
      retry-timeout on-client-error 10
      retry-timeout on-server-error 10
 
    call outbound
 
context sip-gateway GW_SIP
 
  interface IF_GW_SIP
    bind interface LAN context router port 5060
 
context sip-gateway GW_SIP
  bind location-service ASTERISK
  no shutdown
 
context sip-gateway GW_SIP_BACKUP
 
  interface IF_GW_SIP_BACKUP
    bind interface LAN context router port 5061
 
context sip-gateway GW_SIP_BACKUP
  bind location-service ASTERISK_BACKUP
  no shutdown
 
port ethernet 0 0
  medium auto
  encapsulation ip
  bind interface WAN router
  no shutdown
 
port ethernet 0 1
  medium auto
  encapsulation ip
  bind interface LAN router
  no shutdown
 
port e1t1 0 0
  port-type e1
  clock slave
  framing crc4
  application long-haul
  encapsulation q921
 
  q921
    permanent-layer2
    uni-side auto
    encapsulation q931
 
    q931
      protocol dss1
      uni-side net
      bchan-number-order ascending
      encapsulation cc-isdn
      bind interface IF_ISDN switch
 
port e1t1 0 0
  no shutdown
 
port e1t1 0 1
  port-type e1
  clock slave
  framing crc4
  application long-haul
  encapsulation q921
 
  q921
    permanent-layer2
    uni-side auto
    encapsulation q931
 
    q931
      protocol dss1
      uni-side net
      bchan-number-order ascending
      encapsulation cc-isdn
      bind interface IF_ISDN_BACKUP switch
 
port e1t1 0 1
  no shutdown