cisco ip phones

Cisco IP Phones

Jozef Janitorjozjan@cnl.tuke.sk

Cisco

• Svetový leader v oblasti sieťových technológií

• V roku 1998 odkúpila spol. Selsius

• Cisco Call Manager – IP PBX

• Cisco IP Telefóny

Cisco IP Telefóny

• Cisco IP Phones 79XX

Process bootovania telefónu

The IP phone powers on

The phone performs a Power on Self Test (POST)

Through CDP the IP phone learns what the auxiliary VLAN is

The phone initializes the IP stack

The phone boots up

Získanie IP konfigurácie (+TFTP)

IP phone send DHCP Discover broadcast requesting an IP address

DHCP server selects a free IP address from the pool and sends

along with the other scope parameters as a DHCP Offer

The IP phone initializes applies the IP configuration to the IP stack

The IP phone requests it configuration file from

the TFTP server

Súbory na TFTP servery

Firmware SEPAAAABBBBCCCC.cnf.xml XmlDefault.cnf.xml SCCP-dictionary.xml Phonemodel-dictionary.xml Phonemodel-tones.xml

Files critical to the IP phone

TFTP Server

7960Firmware

XML

SEP

XML

SEP

XML

SEP

XML

SEP

7940Firmware7920

Firmware7912Firmware7905

Firmware7902Firmware7910

Firmware

XML

SEP

Stiahnutie konfigurácie

Step 1 - Phone applies addressing information

obtained through DHCP to the IP stack

Step 2 - Using the address of the TFTP server learned from the DHCPOffer the phone looks for and downloads the file named

SEPAAAABBBBCCCC.cnf.xml (where AAAABBBBCCCC is the MAC address), if the file is found the phone will register

Cisco CM is the TFTP Server

SEP000F2470AA32.cnf.xml file

TFTP request for the SEP000F2470AA32.cnf.xml file

MAC 000F.2470.AA32

If no SEP XML file is found go to Step 5

XML

SEP

Nový Firmware

Step 3 - If the firmware version currently on the phone is different than the version specified in the SEPAAAABBBBCCCC.cnf.xml file

then the firmware is downloaded from the TFTP server

TFTP request for firmware if needed

Step 4 - IP phone will reboot if the firmware was updated

MAC 000F.2470.AA32

Firmware file

7960Firmware

Neznámy telefón

Step 6.1 - The phone will not register to Call Manager

Step 5 - If no SEP XML file was found then download from the TFTP server the XMLDefault.cnf.xml file

CallManager operates the TFTP Server

XMLDefault.cnf.xml file

TFTP request for the XMLDefault.cnf.xml file

Unknown IP address with MAC 000F.2470.AA32

Step 6.2 - If auto assign is enabled or the phone has been configured then the new IP phone will register to the CallManager and given an extension number (+SEP

file is created)

or

XML

Default

Registrácia IPT na CCM

TCP/2000SCCP

CCM

Volanie medzi IPT vrámci CCM

TCP/2000SCCP

RTP

CCM

Komunikačné protokoly IP Telefónov

• Signalizačné– SCCP (Skinny)

• Cisco proprietary

– SIP– MGCP

• Dátové– RTP

Cisco Call Manager 4.0 – obrázky

Cisco Call Manager 4.0 – obrázky

Cisco Call Manager 4.0 – obrázky

Cisco Call Manager - HW

Nastavenia IP Telefónu

• Tlačídko SETTINGS

• 3 – Network Configuration

• Odomknutie konfigurácie (**#)

• Use DHCP – YES– Alternate TFTP – YES– TFTP Server – 147.232.22.163

• Use DHCP – NO– IP address, Netmask, Gateway, DNS, TFTP

VoIP@CNL Network