Hi,
I am facing issue with PRI failover,
This is first time I am configuring combination of PRI and SIP Gateway for CUCM
I have two VG for redundancy purpose
Both are connected to CUCM with respective SIP Trunk
Inbound and Outbound Calling working fine from each VG (Caller ID Display, DTMF everything is working very fine)
However problem is faced when VG1 is up and running; and ALL 4 PRIs goes down ( I was performing PRI failover testing)…
Still CUCM sends call to VG1 which gives 404 Not found message and plays annunciator message “ your call can not be completed please contact system administrator”
As I am using “Distribution Algorithm = Circular” in route group every alternate call which id sent to VG1 gets fail.
One of the possible way I look as a solution for this is creating few more voip dial-peer with higher preference and forward call to VG2 in cas all PRIs are down and viceverse in case of VG2
Is there is a way to monitor PRI from CUCM when using it as SIP gateway
Or is there is way I can control PRI using SIP, so I get 503 service not available and then call will be routed to VG2…
Or I am running into some kind of limitation; if YES, can some one please provide some Cisco document for reference.
Or there is any other possible solution which I can use...
Call flow with configuration:
7821 (SIP IP Phone) --- CUCM (10.5.1) --- \+.! (Route Pattern) --- PSTN-RL (Route List) --- PSTN-RG (Route Group), Distribution Algorithm = Circular ---
SIP Trunk to VG 1 (With 4 PRIs) (c2900-universalk9-mz.SPA.154-3.M1.bin)
SIP Trunk to VG 2 (With 2 PRIs) (c2900-universalk9-mz.SPA.154-3.M1.bin)
Please find VG1 Configuration below: (VG2 config is same with only 2 PRIs instead of 4 PRIs)
card type e1 0 0
card type e1 0 1
network-clock-participate wic 0
network-clock-participate wic 1
network-clock-select 1 E1 0/0/0
network-clock-select 2 E1 0/0/1
network-clock-select 3 E1 0/1/0
network-clock-select 4 E1 0/1/1
isdn switch-type primary-net5
voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
sip
bind control source-interface BVI136
bind media source-interface BVI136
registrar server expires max 3600 min 120
controller E1 0/0/0
pri-group timeslots 1-31
description "XXX PRI - Pilot number YYYY,range ABC to XYZ"
!
controller E1 0/0/1
pri-group timeslots 1-31
description "XXX PRI - Pilot number YYYY,range ABC to XYZ"
!
controller E1 0/1/0
pri-group timeslots 1-31
description "XXX PRI - Pilot number YYYY,range ABC to XYZ"
!
controller E1 0/1/1
pri-group timeslots 1-31
description "XXX PRI - Pilot number YYYY,range ABC to XYZ"
bridge irb
interface GigabitEthernet0/0
no ip address
duplex auto
speed auto
bridge-group 136
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
bridge-group 136
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
isdn outgoing display-ie
isdn outgoing ie redirecting-number
no cdp enable
!
interface Serial0/0/1:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
isdn outgoing display-ie
isdn outgoing ie redirecting-number
no cdp enable
!
interface Serial0/1/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
isdn outgoing display-ie
isdn outgoing ie redirecting-number
no cdp enable
!
interface Serial0/1/1:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
isdn send-alerting
isdn sending-complete
isdn outgoing display-ie
isdn outgoing ie redirecting-number
no cdp enable
interface BVI136
ip address X.X.X.X Y.Y.Y.Y
bridge 136 priority 65535
bridge 136 protocol ieee
bridge 136 route ip
voice-port 0/0/0:15
!
voice-port 0/1/0:15
!
voice-port 0/0/1:15
!
voice-port 0/1/1:15
dial-peer voice 1 pots
incoming called-number .
direct-inward-dial
!
dial-peer voice 3 pots
description LCAL MOBILE
destination-pattern [7-9].........
port 0/0/0:15
!
dial-peer voice 147 voip
description CUCM PUB
destination-pattern 2...
session protocol sipv2
session target ipv4:W.W.W.147
dtmf-relay rtp-nte
codec g711ulaw
no vad
!
dial-peer voice 148 voip
description CUCM SUB
destination-pattern 2...
session protocol sipv2
session target ipv4:W.W.W.148
dtmf-relay rtp-nte
codec g711ulaw
no vad
!
dial-peer voice 2 pots
description LOCAL LANDLINE
destination-pattern [2-6].......
port 0/0/0:15
!
dial-peer voice 4 pots
description NATIONAL
destination-pattern 0[1-9].........
port 0/0/0:15
prefix 0
!
dial-peer voice 5 pots
description INTL
destination-pattern 00T
port 0/0/0:15
prefix 00
!
dial-peer voice 6 pots
description TOLLFREE
destination-pattern 1800T
port 0/0/0:15
prefix 1800
!
dial-peer voice 7 pots
description TOLLFREE
destination-pattern 1860T
port 0/0/0:15
prefix 1860
dial-peer voice 22 pots
description LOCAL LANDLINE
preference 1
destination-pattern [2-6].......
port 0/0/1:15
!
dial-peer voice 44 pots
description NATIONAL
preference 1
destination-pattern 0[1-9].........
port 0/0/1:15
prefix 0
!
dial-peer voice 33 pots
description LCAL MOBILE
preference 1
destination-pattern [7-9].........
port 0/0/1:15
!
dial-peer voice 55 pots
description INTL
preference 1
destination-pattern 00T
port 0/0/1:15
prefix 00
!
dial-peer voice 66 pots
description TOLLFREE
preference 1
destination-pattern 1800T
port 0/0/1:15
prefix 1800
!
dial-peer voice 77 pots
description TOLLFREE
preference 1
destination-pattern 1860T
port 0/0/1:15
prefix 1860
dial-peer voice 222 pots
description LOCAL LANDLINE
preference 2
destination-pattern [2-6].......
port 0/1/0:15
!
dial-peer voice 444 pots
description NATIONAL
preference 2
destination-pattern 0[1-9].........
port 0/1/0:15
prefix 0
!
dial-peer voice 333 pots
description LCAL MOBILE
preference 2
destination-pattern [7-9].........
port 0/1/0:15
!
dial-peer voice 555 pots
description INTL
preference 2
destination-pattern 00T
port 0/1/0:15
prefix 00
!
dial-peer voice 666 pots
description TOLLFREE
preference 2
destination-pattern 1800T
port 0/1/0:15
prefix 1800
!
dial-peer voice 777 pots
description TOLLFREE
preference 2
destination-pattern 1860T
port 0/1/0:15
prefix 1860
dial-peer voice 2222 pots
description LOCAL LANDLINE
preference 3
destination-pattern [2-6].......
port 0/1/1:15
!
dial-peer voice 4444 pots
description NATIONAL
preference 3
destination-pattern 0[1-9].........
port 0/1/1:15
prefix 0
!
dial-peer voice 3333 pots
description LCAL MOBILE
preference 3
destination-pattern [7-9].........
port 0/1/1:15
!
dial-peer voice 5555 pots
description INTL
preference 3
destination-pattern 00T
port 0/1/1:15
prefix 00
!
dial-peer voice 6666 pots
description TOLLFREE
preference 3
destination-pattern 1800T
port 0/1/1:15
prefix 1800
!
dial-peer voice 7777 pots
description TOLLFREE
preference 3
destination-pattern 1860T
port 0/1/1:15
prefix 1860
sip-ua
!
!
!
gatekeeper
shutdown
!
!
!
!
!
line con 0
login local
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 4
login local
transport input all
Thanks Regards,
Deval Tetar
