09-26-2008 06:48 AM - edited 03-15-2019 01:33 PM
I am in the middle of testing our SRST. I believe i have everything configured correctly. When i kill the uplink on my switch, the phones swaps to CM Callback Service. I get dial tone but when i make an outgoing call i get a busy signal. The phone line works because i have can call out with a buttset. Any suggestions? Here is the config of the 2811. thanks!
ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 10.0.106.1 10.0.106.2
!
ip dhcp pool Voice
network 10.0.106.0 255.255.255.0
default-router 10.0.106.1
option 150 ip 10.0.100.10 10.0.100.11
!
!
no ip domain lookup
!
!
voice-card 0
dspfarm
dsp services dspfarm
!
!
interface FastEthernet0/0
description Uplink to Extension_3560
ip address 10.0.106.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
ip route 0.0.0.0 0.0.0.0 10.0.106.1
!
!
no ip http server
ip http authentication local
no ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
ip access-list standard telnet
permit 10.0.0.0 0.0.255.255
deny any
!
snmp-server community coweta RO
!
!
!
control-plane
!
!
!
voice-port 0/0/0
timing hookflash-out 50
!
voice-port 0/0/1
!
voice-port 0/1/0
!
voice-port 0/1/1
!
ccm-manager redundant-host 10.0.100.10
ccm-manager mgcp
ccm-manager music-on-hold
ccm-manager config server 10.0.100.10
ccm-manager config
!
mgcp
mgcp call-agent 10.0.100.11 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 modem passthrough voip mode nse
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
mgcp bind media source-interface FastEthernet0/0
!
mgcp profile default
!
!
!
dial-peer voice 100 pots
destination-pattern 9T
incoming called-number .
direct-inward-dial
port 0/0/0
!
dial-peer voice 999010 pots
service mgcpapp
port 0/0/0
!
!
!
!
call-manager-fallback
max-conferences 6 gain -6
transfer-system full-consult
ip source-address 10.0.106.2 port 2000
max-ephones 35
max-dn 100
keepalive 10
!
Solved! Go to Solution.
09-26-2008 10:20 AM
OK, so you have to dial 9 even when plugged directly into the line? If so, add the following to dial peer 100:
forward-digits all
Hope this helps.
Brandon
09-26-2008 07:11 AM
dont see "ccm-manager fallback-mgcp" in config.
also, where is the voip dial peer.
09-26-2008 07:12 AM
Add the following command:
ccm-manager fallback-mgcp
Hope this helps.
Brandon
09-26-2008 07:16 AM
I added ccm-manager fallback-mgcp, but it is still getting the busy signal. Voip Dial Peer?
I'm actually learning this on the fly. I started here about 6 months ago and right before i started my company had a vendor come in and install CCM system. I am trying to replicate a router config. I have a feeling that SRST isn't working at the sites they configured. I can't test it but i have set up my own lab trying to grasp it.
09-26-2008 07:30 AM
If you do "show ccm-manager", does it show fallback mode as enabled and active? You may have to do "no mgcp" and then "mgcp".
Brandon
09-26-2008 07:35 AM
Extension_2811#sh ccm-manager fallback-mgcp
Current active Call Manager: None
MGCP Fallback mode: Enabled/ON
Last MGCP Fallback start time: 11:13:28 EST Sep 26 2008
Last MGCP Fallback end time: None
I ran NO MGCP, then ran MGCP. I tried the show ccm-manager command and same reults as well as busy signal when i dialed out. The person that posted before you mentioned a VOIP DIAL PEER?
EDIT: BTW i have the router disconnected from call manager right now. it is plugged into a layer 3 switch and the uplink is down so i can test SRST. The phone has the proper tftp config and show that Call Manager (SRST) is active
09-26-2008 07:38 AM
You don't need a voip dial peer to make a call to the PSTN. Can you turn on "debug voip dialpeer", make the call and post the results?
Brandon
09-26-2008 07:48 AM
09-26-2008 07:56 AM
So, you can use an analog phone on the line plugged into port 0/0/0 and dial 6788551908 and the call goes through? Is the telco expecting 10 digits on this call?
Brandon
09-26-2008 08:00 AM
It is a fax line in my office. I have to dial 9 to get out.
Question. what does the "9T" mean? I assume the first digit dialed has to be a 9 and T means anythings else, like a wildcard mask?
!
dial-peer voice 100 pots
destination-pattern 9T
incoming called-number .
direct-inward-dial
port 0/0/0
!
09-26-2008 08:52 AM
The T indicates a variable number of digits. The gateway waits for more digits until the interdigit timeout expires or you enter #. With POTS dial peers, explicitly matched digits are stripped. So, from your debug 6788551908 is being sent to the PSTN. Is this a valid number? Can you dial this number from the fax or another analog device using the same line?
Brandon
09-26-2008 09:41 AM
I can use a buttset and call that number as well as a few others. This is weird. The company that installed a couple of our original sites have it configure this way and i have no idea if they ever tested the survivability. As far as my router config, does everything look like it is configured correctly? We installed a department yesterday and everything works but SRST. So i decided to set up a lab in my office.
The main concern is 911 of course. But i should be able to call out to any number, correct?
09-26-2008 09:47 AM
Does CCM use this same port to send outbound calls at this location? If so, look at the route pattern and see what it is sending out. When you use the buttset, you are dialing 10 digits, right?
Brandon
09-26-2008 10:18 AM
yes, i am dialing 9, and then the number to get out. i am also dialing that on my 7941 handset when it is in srst.
As far as the Port, i'm not sure what you mean. In CCM, SRST Reference config i have port 2000 and SIP port 5060. then it says SRST certificate provider port* 2445.
In route pattern i have a list of patterns that the vendor configured.
09-26-2008 10:20 AM
OK, so you have to dial 9 even when plugged directly into the line? If so, add the following to dial peer 100:
forward-digits all
Hope this helps.
Brandon
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