03-29-2007 05:05 PM - edited 03-14-2019 08:46 PM
I have implemented SRST on a 2811 router. When in SRST mode people can make outbound call but can not recieve calls. I have done an debug voice ccapi inout but I do not see any number coming in from telco just blanks where you would normally see an extention. When the call comes in I hear it ring once and then get dial tome. Any help would be appreciated. Thanks
Jason
03-29-2007 05:20 PM
Jason,
What kind of ports are the calls coming in on? Digits will only be seen inbound on FXS/DID, CAS T1, or PRI T1.
In SRST mode the calls are handled with H323, so you need a POTS peer defined that either does a connection PLAR (ringdown), links the call to a TCL script for AA, or configures DID so the router will collect digits.
A ring once and dial tone is the symptom if the default peer is being matched.
Can you post your config?
Dave
03-29-2007 05:58 PM
Dave,
Thanks for the responce. The calls are coming in on FXO ports(these do not appear to be DID FXO ports). Here is my config.
voice call send-alert
voice rtp send-recv
ccm-manager fallback-mgcp
ccm-manager redundant-host X.X.X.X X.X.X.X ccm-manager mgcp
ccm-manager music-on-hold
ccm-manager config server X.X.X.X
ccm-manager config
!
!
!
!
controller T1 0/0/0
framing sf
linecode ami
channel-group 0 timeslots 1-24 speed 56
!
fair-queue
!
!
no crypto isakmp ccm
!
!
!
!
interface FastEthernet0/0
no ip address
no ip redirects
no ip unreachables
no ip route-cache cef
no ip route-cache
no ip mroute-cache
duplex auto
speed auto
!
interface FastEthernet0/0.1
encapsulation dot1Q 1 native
ip address X.X.X.X 255.255.255.0
ip access-group 101 in
ip access-group 101 out
ip helper-address X.X.X.X
no ip redirects
no ip unreachables
ip accounting access-violations
no ip route-cache
no ip mroute-cache
!
interface FastEthernet0/0.171
encapsulation dot1Q 171
ip address X.X.X.X 255.255.255.0
ip helper-address X.X.X.X
ip helper-address X.X.X.X
no ip redirects
no ip unreachables
no ip route-cache
no ip mroute-cache
standby 171 ip X.X.X.X
standby 171 preempt
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0:0
bandwidth 1344
ip address X.X.X.X 255.255.255.252
no ip redirects
no ip unreachables
no ip route-cache cef
no ip route-cache
!
router eigrp 4
network 10.0.0.0
no auto-summary
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.201.205.1
!
!
no ip http server
no ip http secure-server
!
!
!
!
tacacs-server host X.X.X.X
tacacs-server host X.X.X.X
tacacs-server directed-request
tacacs-server key xxx
!
control-plane
!
!
!
voice-port 0/1/0
!
voice-port 0/1/1
!
voice-port 0/1/2
!
voice-port 0/1/3
!
voice-port 0/2/0
timing hookflash-out 500
!
voice-port 0/2/1
timing hookflash-out 500
!
voice-port 0/2/2
timing hookflash-out 500
!
voice-port 0/2/3
timing hookflash-out 500
!
mgcp call-agent X.X.X.X 2427 service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp package-capability rtp-package
no mgcp package-capability res-package
mgcp package-capability sst-package
no mgcp package-capability fxr-package
mgcp package-capability pre-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
mgcp rtp payload-type g726r16 static
mgcp bind control source-interface FastEthernet0/0.171
mgcp bind media source-interface FastEthernet0/0.171
!
mgcp profile default
!
!
!
dial-peer voice 999020 pots
port 0/2/0
!
dial-peer voice 999021 pots
application mgcpapp
port 0/2/1
!
dial-peer voice 999023 pots
port 0/2/3
!
dial-peer voice 10 pots
preference 1
application mgcpapp
destination-pattern 9T
incoming called-number .
port 0/2/0
forward-digits all
!
dial-peer voice 20 pots
preference 2
application mgcpapp
destination-pattern 9T
port 0/2/1
forward-digits all
!
dial-peer voice 30 pots
preference 3
destination-pattern 9T
incoming called-number .
port 0/2/2
forward-digits all
!
dial-peer voice 40 pots
preference 4
application mgcpapp
destination-pattern 9T
port 0/2/3
forward-digits all
!
!
!
!
call-manager-fallback
secondary-dialtone 9
max-conferences 8
limit-dn 7940 2
limit-dn 7960 2
ip source-address X.X.X.X port 2000
max-ephones 36
max-dn 72 dual-line
alias 1 49409 to 43161
alias 2 49410 to 43163
alias 3 49411 to 43187
alias 4 49412 to 48182
alias 5 49423 to 45585
time-zone 8
Any help would be apprecaited.
03-29-2007 06:15 PM
Jason,
Where does the Call Manager send the incoming calls when operating normally with MGCP?
At most of our sites with FXO ports we run the old SRST 2.1 TCL script which forwards the calls to a call center pilot number if reachable, or invokes an AutoAttendant when the WAN is down. The other solution is to configure the ports to use H323 normally, with connection PLAR to forward the calls to the local receptionist. This works the same regardless of SRST status.
Please rate helpful posts.
Dave
03-29-2007 06:19 PM
These ports are not even registered in callmanager. We don't need them to be the ports only need to be used with SRST. Just haven't gotten around to taking MGCP off of the router.
what I want to happen is I have the 4 FXO ports that have an extention associated with them. These numbers will be associated with DN's on the IP phones.
So I need both inbound and outbound dialing on these ports. Is this possible. I hope I explained this well enough. Thanks I appreciate the help
03-29-2007 08:39 PM
Jason,
Remove all mgcpapp from POTS peers.
Configure connection PLAR for each FXO port. XXXX will be the phone you want to ring. All ports can go to the same phone, or to different phones.
voice-port 0/2/0
connection plar opx XXXX
Add VOIP peer(s) to route all XXXX calls to Call Manager when WAN link is up. You also need a H323 gateway configured in the Call Manager. You may already have this to route outbound calls using a 9.@ route pattern.
dial-peer voice 100 voip
destination-pattern XXXX
session target ipv4:10.X.X.X Call Manager IP address.
In SRST mode the phones will register with the router. Incoming calls will route directly to the XXXX phones. They will dial out with a 9 plus number matching the existing peers.
Please use the pulldown menu to rate helpful posts.
Dave
03-30-2007 06:12 AM
Thanks for putting the time and effort into this I apprecaite it.
Jason
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