• Max-dn is default to 0.
  • Do not set this number higher than what's required as it consumes memory
  • This number also restricts the ephone-dn tag that can be configured e.g. Max-dn of 30 will not allow ephone-dn 31 to be created.
  • If you don't want all the ephone-dn to register with the gatekeeper by default, configure “[no-reg both]” globally to turn it off globally. May need to reboot the router for changes to take effect.
• Max-ephones is default to 0.
  • Again do not set this number higher than what's required as it consumes memory
  • It only limits the maximum number of ephone that can be registered
  • It does not limit the number of ephone that can be configured
• Specify the IP Port - port is default to 2000
• Create phone configuration files

telephony-service
  max-dn <number> [no reg both]
  max-ephones <number>
  !
  ip source-address <ip> [port <port-num>]
  !
  create cnf-files

• Enable by default

telephony-service
  auto-reg-ephone

• To show all auto registration attempt

Router# show ephone attempted-registration

• To auto assign DN
• All DN must be of the same type either single or dual-line but not mix
• The type if not specified will catch all
• cfw provide the Call Forward Busy Number and timeout value
• The DN needs to be defined as well

telephony-service
  auto assign <start-dn-tag> to <end-dn-tag> [type phone-type] [cfw <number> timeout <seconds>]
!  
ephone-dn <start-dn-tag> dual-line
  number 1000
...
ephone-dn <end-dn-tag> dual-line
  number 1999

• Default is 30s
• If three successive keepalive are missed, the device must register again

telephony-service
  keepalive <seconds>

• Specify the language to be displayed

telephony-service
  user-locale <language-code>

• Specify the call progress tones and cadence

telephony-service
  network-locale <language-code>

• Debug/Verify locales that is to be utilized by these devices

Router# show telephony-service tftp-bindings

telephony-service
  date-format {mm-dd-yy | dd-mm-yy | yy-dd-mm | yy-mm-dd}
  time-format {12 | 24}

• Use a loopback interface to bind H.323

interface loopback 0
  ip address <lo-ip> <mask>
  h323-gateway voip interface
  h323-gateway voip bind srcaddr <lo-ip>

• Provides detail information sorted and filtered using the options

CCME# show telephony-service [options]

• To see that the active ephone configuration

CCME_Router#show telephony-service dial-peer 

dial-peer voice 20002 pots
 destination-pattern 7301$
 huntstop
 progress_ind setup enable 3
 port 50/0/1


CCME_Router#

• Use this command to verify which phone firmware is installed on a particular ephone. The DeviceName includes the MAC address for the IP phone.

Router# show ephone phone-load 

DeviceName CurrentPhoneload PreviousPhoneload LastReset 
===================================================================== 
SEP000A8A2C8C6E 7.3(3.02)                                 Initialized 

• Debug tftp events
• The following sample from the debug tftp event command shows how the Cisco phone firmware for a Cisco Unified IP Phone 7940G is upgraded from SCCP 5.X to SIP 6.3

Router# debug tftp event 
...
*May 6 17:37:03.737: %IPPHONE-6-UNREGISTER_NORMAL: ephone-1:SEP000ED7DF7932 IP:1.5.49.84 Socket:4 
DeviceType:Phone has unregistered normally. 
*May 6 17:37:35.949: TFTP: Looking for OS79XX.TXT 
*May 6 17:37:36.413: TFTP: Opened system:/cme/sipphone/OS79XX.TXT, fd 4, size 13 for process 81 
*May 6 17:37:36.413: TFTP: Finished system:/cme/sipphone/OS79XX.TXT, time 00:00:00 for process 81 
*May 6 17:37:40.533: TFTP: Looking for P0S3-06-3-00.sbn 
*May 6 17:37:40.541: TFTP: Opened flash:P0S3-06-3-00.sbn, fd 4, size 487198 for process 81 
*May 6 17:37:48.225: TFTP: Finished flash:P0S3-06-3-00.sbn, time 00:00:07 for process 81 
*May 6 17:40:26.925: TFTP: Looking for OS79XX.TXT 
*May 6 17:40:26.925: TFTP: Opened system:/cme/sipphone/OS79XX.TXT, fd 4, size 13 for process 81 
*May 6 17:40:26.925: TFTP: Finished system:/cme/sipphone/OS79XX.TXT, time 00:00:00 for process 81 
*May 6 17:40:26.929: TFTP: Looking for SIPDefault.cnf 
*May 6 17:40:26.929: TFTP: Opened system:/cme/sipphone/SIPDefault.cnf, fd 4, size 1558 for process 81 
*May 6 17:40:26.937: TFTP: Finished system:/cme/sipphone/SIPDefault.cnf, time 00:00:00 for process 81 
*May 6 17:40:27.053: TFTP: Looking for SIP000ED7DF7932.cnf 
*May 6 17:40:27.053: TFTP: Opened system:/cme/sipphone/SIP000ED7DF7932.cnf, fd 4, size 789 for process 81 
*May 6 17:40:27.057: TFTP: Finished system:/cme/sipphone/SIP000ED7DF7932.cnf, time 00:00:00 for process 81 

• The following sample from the debug tftp event command shows how the Cisco phone firmware for a Cisco Unified IP Phone 7940G is upgraded from SIP 6.3 to SIP 7.0 after the phone is rebooted or reset:

Router# debug tftp event 
...
*May 6 17:42:35.581: TFTP: Looking for OS79XX.TXT 
*May 6 17:42:35.585: TFTP: Opened system:/cme/sipphone/OS79XX.TXT, fd 5, size 13 for process 81 
*May 6 17:42:35.585: TFTP: Finished system:/cme/sipphone/OS79XX.TXT, time 00:00:00 for process 81 
*May 6 17:42:35.969: TFTP: Looking for P003-07-4-00.sbn 
*May 6 17:42:35.977: TFTP: Opened slot0:P003-07-4-00.sbn, fd 5, size 129876 for process 81 
*May 6 17:42:37.937: TFTP: Finished slot0:P003-07-4-00.sbn, time 00:00:01 for process 81 
*May 6 17:44:31.037: TFTP: Looking for CTLSEP000ED7DF7932.tlv 
*May 6 17:44:31.057: TFTP: Looking for SEP000ED7DF7932.cnf.xml 
*May 6 17:44:31.089: TFTP: Looking for SIP000ED7DF7932.cnf 
*May 6 17:44:31.089: TFTP: Opened system:/cme/sipphone/SIP000ED7DF7932.cnf, fd 5, size 789 for process 81 
*May 6 17:44:31.089: TFTP: Finished system:/cme/sipphone/SIP000ED7DF7932.cnf, time 00:00:00 for process 81 
*May 6 17:44:31.125: TFTP: Looking for P0S3-07-4-00.loads 
*May 6 17:44:31.133: TFTP: Opened slot0:P0S3-07-4-00.loads, fd 5, size 461 for process 81 
*May 6 17:44:31.141: TFTP: Finished slot0:P0S3-07-4-00.loads, time 00:00:00 for process 81 
*May 6 17:44:31.673: TFTP: Looking for P0S3-07-4-00.sb2 
*May 6 17:44:31.681: TFTP: Opened slot0:P0S3-07-4-00.sb2, fd 5, size 592626 for process 81 
*May 6 17:44:33.989: TFTP: Finished slot0:P0S3-07-4-00.sb2, time 00:00:02 for process 81