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Highlighted
Beginner

Cisco IP Communicator Continuously Registering

Hello all

I'm prepping for my CCNA Voice and I've been trying to get a home lab set up. I'm part the way there, I managed to get an SPA303 working with CME 8.5. I'm now trying to get IP Communicator which is running on my desktop to talk to CME. IP Communicator version is 8.6.1.0. I'm trying to configure the IP Communicator as ephone 1 assigned ephone-dn 9. Any help is much appreciated.

Problem

IP Communicator does not register

SCCP Port (port 2000) on CME is closed

Symptoms

IP Communicator continuously displays "Registering", but never actually registers. The status messages on the IP Communicator are:

SEP74D02BA25C06.cnf.xml

No Trust List Installed

Error Updating Locale

I noticed in Wireshark that the phone sends packets to the CME on port 2000, but the CME responds with a reset (I confirmed with NMAP that the port is closed). See attached picture. Below is my config. I have confirmed that the phone can and does pull its config from CME via TFTP.

Other Info

The phone is not going to be in a special VLAN.

DHCP is provided by a Windows domain controller that is configured with option 150.

There are no firewalls between myself and CME (aside from my host firewall - it is configured to allow IP Communicator)

Config

------------------ show running-config ------------------
 
 
Building configuration...
 
 
Current configuration : 4623 bytes
!
! Last configuration change at 19:51:01 TEXAS Mon Jun 8 2015 by husband
!
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname callmanager
!
boot-start-marker
boot-end-marker
!
!
!
aaa new-model
!
!
!
!
!
!
!
aaa session-id common
!
clock timezone TEXAS -5 0
!
dot11 syslog
ip source-route
!
!
ip cef
!
!
!
ip domain name curell.local
ip name-server 192.168.1.2
ip name-server 8.8.8.8
ip name-server 8.8.4.4
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
voice service voip
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 no supplementary-service h450.2
 no supplementary-service h450.3
 no supplementary-service h450.7
 sip
  bind control source-interface GigabitEthernet0/0
  bind media source-interface GigabitEthernet0/0
  registrar server expires max 1200 min 300
!
!
voice register global
 mode cme
 source-address 192.168.1.14 port 5060
 max-dn 100
 max-pool 25
 time-format 24
 date-format D/M/Y
 tftp-path flash:
 create profile sync 0019406339824212
!
voice register dn  1
 number 3
 shared-line
 label Foozand!
!
voice register pool  1
 id mac 34DB.FD5E.B8C9
 number 1 dn 1
 dtmf-relay sip-notify
 username XXXXX password XXXXXXXXXXXX
 codec g711ulaw
!
!
!
!
voice-card 0
!
crypto pki token default removal timeout 0
!
crypto pki trustpoint TP-self-signed-466642165
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-466642165
 revocation-check none
!
!
crypto pki certificate chain TP-self-signed-466642165
 certificate self-signed 01
  30820229 30820192 A0030201 02020101 300D0609 2A864886 F70D0101 04050030 
  30312E30 2C060355 04031325 494F532D 53656C66 2D536967 6E65642D 43657274 
  69666963 6174652D 34363636 34323136 35301E17 0D313530 36303632 32313532 
  385A170D 32303031 30313030 30303030 5A303031 2E302C06 03550403 1325494F 
  532D5365 6C662D53 69676E65 642D4365 72746966 69636174 652D3436 36363432 
  31363530 819F300D 06092A86 4886F70D 01010105 0003818D 00308189 02818100 
  951E0718 F1A60BE1 51D9B628 FCE0B3B9 0C24F800 7BAFB8FF 0D9C1AEF F3CF1E9E 
  B4639A20 D7672FB7 77FDC0A4 983514BA DDBB7B84 5C995C30 59299E00 9B47E45D 
  173B2DF4 1B907A99 F1800AA8 5B9D4157 D5406492 3940FE6C C2241ADD 51E8A099 
  BA877A3A FFD368A3 7B36EF36 415F7D9C 8A587073 A095D896 F01CD6FC F91746B3 
  02030100 01A35330 51300F06 03551D13 0101FF04 05300301 01FF301F 0603551D 
  23041830 1680148A 9E7320D1 BA872E3D 9A94944A D1C10009 7979A530 1D060355 
  1D0E0416 04148A9E 7320D1BA 872E3D9A 94944AD1 C1000979 79A5300D 06092A86 
  4886F70D 01010405 00038181 00055388 9DF38EED 82EFFA37 4E87234E 6BE1BBCB 
  994402B5 8740F88A 8681CD4A C3F0E5F5 ECF4BF46 6A3D8085 493032C0 F8DDE372 
  5562F9B6 74AA13C8 A473BA72 9E38332A 90C99E6E 49272519 99E9C12A 67CEF34A 
  5C9D0B0F 819B22CA 8E5C96AF 7C7365DA 4ED86BF0 E58160D3 6CB1C0FB 9E77579F 
  AEC65FE0 7E69F51E 73354641 62
  quit
!
!
license udi pid CISCO2821 sn FTX1317A19D
archive
 log config
  hidekeys
username husband privilege 15 secret 5 <removed>
!
redundancy
!
!
no ip ftp passive
ip ssh authentication-retries 2
!
!
!
!
!
!
!
interface GigabitEthernet0/0
 ip address 192.168.1.14 255.255.255.0
 duplex full
 speed 1000
!
interface GigabitEthernet0/1
 ip address 172.16.0.1 255.255.255.252
 shutdown
 duplex auto
 speed auto
!
ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip http path flash:
!
!
!
logging esm config
!
!
!
!
!
!
!
control-plane
!
!
!
!
mgcp profile default
!
!
!
!
!
telephony-service
 no auto-reg-ephone
 max-ephones 25
 max-dn 100
 ip source-address 192.168.1.14 port 2000
 application telephony-service
 cnf-file location flash:
 time-format 24
 date-format dd-mm-yy
 keepalive 60
 max-conferences 8 gain -6
 web admin system name admin password admin
 transfer-system full-consult
 create cnf-files version-stamp Jan 01 2002 00:00:00
!
!
ephone-template  1
 softkeys hold  Join Newcall Resume Select
 softkeys idle  Redial Newcall Cfwdall Pickup Gpickup Dnd Login
 softkeys seized  Redial Endcall Cfwdall Pickup Gpickup Callback
 softkeys alerting  Acct Callback Endcall
 softkeys connected  Hold Endcall Trnsfer Confrn Acct Park
!
!
ephone-dn  2
 number 8888
 application telephony-service
!
!
ephone-dn  9  dual-line
 number 9
 description Cisco IP Communicator
 application telephony-service
!
!
ephone  1
 device-security-mode none
 mac-address 74D0.2BA2.5C06
 type CIPC
 button  1:9
!
!
!
!
line con 0
line aux 0
line vty 0 4
 transport input ssh
!
scheduler allocate 20000 1000
ntp server tick.uh.edu
end
1 ACCEPTED SOLUTION

Accepted Solutions
Highlighted
Beginner

Hi Grant,

Please try to "shut" and "no shut" on the telephony service and then see if the phone registers.

Also, as per capture we see continuous resets from CME and then phone fails to find the locale file. Please also share the output of "show flash", if the above does not resolve the issue.

Regards,
Ronak Agarwal

View solution in original post

4 REPLIES 4
Highlighted
Beginner

Hi Grant,

Please try to "shut" and "no shut" on the telephony service and then see if the phone registers.

Also, as per capture we see continuous resets from CME and then phone fails to find the locale file. Please also share the output of "show flash", if the above does not resolve the issue.

Regards,
Ronak Agarwal

View solution in original post

Highlighted

It worked! I'm so happy that it worked, but on other hand it makes me ever so frustrated that I spent literally hours trying to figure that out and it was the telephony equivalent of turning it off and on again bahahaha. I'm watching wireshark and the resets have stopped. The phone is no longer searching for any of those files.

Let me ask the silly question, why did that work? What does shutting it off and on again reset that wasn't working previously?

Highlighted

Glad to know that it worked!!

Well, many times we see even in cucm, we have the configuration setup properly but still the phone does not register. Then either we reset the phone or restart the call manager service.

In CME, when you shut the telephony service and no shut it again, it refreshes the configuration that it presents to the phone. 

 

Regards,

Ronak Agarwal

Highlighted

Thanks for the tip in this old post. It helped me out today!

 

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