06-23-2006 06:49 AM - edited 03-13-2019 01:55 PM
I'm trying to setup SRST in the test environment.
Troubles:
Additional CallManager doesn't appear in a Phone config
when I'm disabling CCM, IP phones don't try to register on a SRST device.
Test environment contains:
1 CCM 4.1(3) IP=10.0.0.12
2 IP Phones 7912 IP=10.100.0.X (default gataway 10.100.0.1)
1 cisco2851 router - SRST device and MGCP gateway IP=10.100.0.1, 172.16.16.1
cisco2851 is registered on a CCM
SRST reference SRST-2 is created onto a CCM. It points to 10.100.1.0
Gateway and IP phones are members of a device pool - default.
The SRST Reference in this device pool is pointed to a SRST-2.
Network routing works properly.
Below is a part of cisco2851 config (some lines was omitted)
DHCP:
ip dhcp pool IP_PHONES
network 10.100.0.0 255.255.255.0
default-router 10.100.0.1
option 150 ip 10.0.0.12
MGCP GW:
voice-port 0/0/0
cptone RU
voice-port 0/0/3
cptone RU
!
ccm-manager fallback-mgcp
ccm-manager mgcp
ccm-manager music-on-hold
ccm-manager config server ccm-test
ccm-manager config
!
mgcp
mgcp call-agent ccm-test 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
no mgcp explicit hookstate
mgcp rtp payload cisco-pcm-switch-over-ulaw 126
mgcp rtp payload cisco-pcm-switch-over-alaw 126
mgcp rtp payload-type g726r16 static
!
mgcp profile default
!
dial-peer voice 1 pots
service mgcpapp
port 0/0/1
!
SRST:
call-manager-fallback
max-conferences 8 gain -6
transfer-system full-blind
ip source-address 10.100.0.1 port 2000
max-ephones 30
max-dn 100
system message primary CM Fallback Service
system message secondary CM Fallback Service
keepalive 60
time-zone 26
time-format 24
date-format dd-mm-yy
application
global
service alternate Default
----------------------------------
output of "show call-manager-fallback"
CONFIG [Version=3.4(0)]
========================
Version 3.4(0)
For on-line documentation please see:
http://www.cisco.com/univercd/cc/td/doc/product/access/ip_ph/ip_ks/index.htm
ip source-address 10.100.0.1 port 2000
max-ephones 30
max-dn 100
max-conferences 8 gain -6
dspfarm units 0
dspfarm transcode sessions 0
huntstop
time-format 24
date-format dd-mm-yy
timezone 26 E. Europe Standard/Daylight Time
keepalive 60
timeout interdigit 10
timeout busy 10
timeout ringing 180
caller-id name-only: enable
system message primary CM Fallback Service
system message secondary CM Fallback Service
Limit number of DNs per phone:
Log (table parameters):
max-size: 150
retain-timer: 15
transfer-system full-blind
local directory service: enabled.
output of "show debug"
EPHONE state debugging is enabled
EPHONE registration debugging is enabled
EPHONE ccm-compatibility debugging is enabled
for 30 ephones (too many to list)
But there are no debug messages
12-06-2006 12:47 AM
Hi,
What the firmware of IP Phone 7912 installed on your phone?
In my IP Phone 7912 - CP7912080001SCCP051117A.
Regars,
Andrew.
12-08-2006 12:23 AM
I have CP7912080001SCCP051117A phoneload too.
Version of CCM 4.2(1). SRST version is 3.3. IOS 12.4(3b) or 12.4(10). I founded that IP of SRST reference in CCM configuration MUST be equal IP of default gateway in SRST gateway. This is applicable only for 7912 Phone. For 7940/60 IP of SRST reference may differ from IP of default gateway. When I changed SRST ref to default gateway, my 7912 goes to SRST immediatily whether the CCM works or not. And I couldn't force 7912 back to CCM. Note, I had TFTP timeout messages at 7912 log screen. Only after shutting down SRST my 7912 came back to CCM. But after the last reset of 7912 I didn't see any message about SRST in 7912 configuration. I check CPxxxxx.cnf.xml from TFTP and see the SRST reference in it. Why does the 7912 Phone lose the SRST configuration and how to force to insert the IP of SRST in 7912 configuration? Resetting, deleting and making new phone, changing SRST reference at CCM administration was not successful. Routing and switching are good. Keepalive of CCM Publisher is 30 sec, of Subscriber is 60 sec. Keepalive of SRST is 30 sec.
Sergei
12-12-2006 06:18 AM
Well, I resolved this issue.
Trouble was in DNS name of CallManager server in ccmadmin configuration. When I changed to IP address from DNS name 7912 successfully fallback to SRST and switch over to CCM.
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