How to configure Cisco Phone 7975g with Asterisk
To work with asterisk Cisco Phone 7975g must be upgraded with SCCP to SIP firmware
1- Download SIP Firmware for Cisco Phone 7975g
2- Configure TFTP server and upload SIP firmware
3- Boot Cisco Phone with SIP firmware after upgrade
4- configure SEP_MACaddress.cnf.xml file
5- Reboot the Cisco Phone .
Example File is given below need to updated according to your requirement.
<?xml version="1.0" encoding="UTF-8"?>
<device>
<deviceProtocol>SIP</deviceProtocol>
<sshUserId>cisco</sshUserId>
<sshPassword>cisco</sshPassword>
<tzdata>
<tzolsonversion>2015a</tzolsonversion>
<tzupdater>tzupdater.jar</tzupdater>
</tzdata>
<devicePool>
<dateTimeSetting>
<name>CMLocal</name>
<dateTemplate>D/M/YYa</dateTemplate>
<timeZone>India Standard Time</timeZone>
<olsonTimeZone>Australia/Sydney</olsonTimeZone>
<ntps>
<ntp>
<name>time.google.com</name>
<ntpMode>Unicast</ntpMode>
</ntp>
</ntps>
</dateTimeSetting>
<callManagerGroup>
<members>
<member priority="0">
<callManager>
<ports>
<ethernetPhonePort>2000</ethernetPhonePort>
<sipPort>5060</sipPort>
<securedSipPort>5061</securedSipPort>
</ports>
<processNodeName>172.16.10.149</processNodeName>
</callManager>
</member>
</members>
</callManagerGroup>
</devicePool>
<commonProfile>
<phonePassword></phonePassword>
<backgroundImageAccess>true</backgroundImageAccess>
<callLogBlfEnabled>2</callLogBlfEnabled>
</commonProfile>
<loadInformation>SIP75.9-2-1S</loadInformation>
<featurePolicyFile>DefaultFP.xml</featurePolicyFile>
<vendorConfig>
<disableSpeaker>false</disableSpeaker>
<disableSpeakerAndHeadset>false</disableSpeakerAndHeadset>
<pcPort>0</pcPort>
<settingsAccess>1</settingsAccess>
<garp>0</garp>
<voiceVlanAccess>0</voiceVlanAccess>
<ciscoCamera>1</ciscoCamera>
<videoCapability>1</videoCapability>
<usbClasses>0,1,2</usbClasses>
<sdio>1</sdio>
<wifi>0</wifi>
<bluetoothProfile>0,1</bluetoothProfile>
<powerNegotiation>0</powerNegotiation>
<autoSelectLineEnable>0</autoSelectLineEnable>
<webAccess>0</webAccess>
<sshAccess>0</sshAccess>
<sshPort>22</sshPort>
<g722CodecSupport>2</g722CodecSupport>
<daysDisplayNotActive>1,7</daysDisplayNotActive>
<displayOnTime>07:00</displayOnTime>
<displayOnDuration>12:00</displayOnDuration>
<displayIdleTimeout>00:15</displayIdleTimeout>
<displayOnWhenIncomingCall>1</displayOnWhenIncomingCall>
<spanToPCPort>1</spanToPCPort>
<loggingDisplay>1</loggingDisplay>
<loadServer></loadServer>
</vendorConfig>
<commonConfig>
<usb1>1</usb1>
<usb2>1</usb2>
<ciscoCamera>1</ciscoCamera>
<usbClasses>0,1,2</usbClasses>
<sdio>1</sdio>
<bluetooth>1</bluetooth>
<wifi>0</wifi>
<bluetoothProfile>0,1</bluetoothProfile>
<joinAndDirectTransferPolicy>0</joinAndDirectTransferPolicy>
</commonConfig>
<enterpriseConfig>
<usb1>1</usb1>
<usb2>1</usb2>
<ciscoCamera>1</ciscoCamera>
<usbClasses>0,1,2</usbClasses>
<sdio>1</sdio>
<bluetooth>1</bluetooth>
<wifi>0</wifi>
<bluetoothProfile>0,1</bluetoothProfile>
<joinAndDirectTransferPolicy>0</joinAndDirectTransferPolicy>
<videoCapability>0</videoCapability>
<webAccess>0</webAccess>
<eapAuthentication>2</eapAuthentication>
<webProtocol>0</webProtocol>
</enterpriseConfig>
<advertiseG722Codec>1</advertiseG722Codec>
<networkLocale>United_States</networkLocale>
<networkLocaleInfo>
<name>United_States</name>
<uid>64</uid>
<version>1.0.0.0-1</version>
</networkLocaleInfo>
<deviceSecurityMode>1</deviceSecurityMode>
<idleTimeout>0</idleTimeout>
<authenticationURL></authenticationURL>
<directoryURL></directoryURL>
<idleURL></idleURL>
<informationURL></informationURL>
<messagesNumber></messagesNumber>
<messagesURL></messagesURL>
<proxyServerURL></proxyServerURL>
<servicesURL>http://cisco.internect.net/</servicesURL>
<dscpForSCCPPhoneConfig>96</dscpForSCCPPhoneConfig>
<dscpForSCCPPhoneServices>0</dscpForSCCPPhoneServices>
<dscpForCm2Dvce>96</dscpForCm2Dvce>
<transportLayerProtocol>2</transportLayerProtocol>
<dndCallAlert>5</dndCallAlert>
<phonePersonalization>1</phonePersonalization>
<rollover>0</rollover>
<singleButtonBarge>0</singleButtonBarge>
<joinAcrossLines>1</joinAcrossLines>
<autoCallPickupEnable>false</autoCallPickupEnable>
<blfAudibleAlertSettingOfIdleStation>0</blfAudibleAlertSettingOfIdleStation>
<blfAudibleAlertSettingOfBusyStation>0</blfAudibleAlertSettingOfBusyStation>
<capfAuthMode>0</capfAuthMode>
<capfList>
<capf>
<phonePort>3804</phonePort>
</capf>
</capfList>
<certHash></certHash>
<encrConfig>false</encrConfig>
<sipProfile>
<sipProxies>
<backupProxy>USECALLMANAGER</backupProxy>
<backupProxyPort>5060</backupProxyPort>
<emergencyProxy>USECALLMANAGER</emergencyProxy>
<emergencyProxyPort>5060</emergencyProxyPort>
<outboundProxy></outboundProxy>
<outboundProxyPort></outboundProxyPort>
<registerWithProxy>true</registerWithProxy>
</sipProxies>
<sipCallFeatures>
<cnfJoinEnabled>true</cnfJoinEnabled>
<callForwardURI>x-cisco-serviceuri-cfwdall</callForwardURI>
<callPickupURI>x-cisco-serviceuri-pickup</callPickupURI>
<callPickupListURI>x-cisco-serviceuri-opickup</callPickupListURI>
<callPickupGroupURI>x-cisco-serviceuri-gpickup</callPickupGroupURI>
<meetMeServiceURI>x-cisco-serviceuri-meetme</meetMeServiceURI>
<abbreviatedDialURI>x-cisco-serviceuri-abbrdial</abbreviatedDialURI>
<rfc2543Hold>false</rfc2543Hold>
<callHoldRingback>2</callHoldRingback>
<localCfwdEnable>true</localCfwdEnable>
<semiAttendedTransfer>true</semiAttendedTransfer>
<anonymousCallBlock>2</anonymousCallBlock>
<callerIdBlocking>2</callerIdBlocking>
<dndControl>1</dndControl>
<remoteCcEnable>true</remoteCcEnable>
<retainForwardInformation>true</retainForwardInformation>
</sipCallFeatures>
<sipStack>
<sipInviteRetx>6</sipInviteRetx>
<sipRetx>10</sipRetx>
<timerInviteExpires>180</timerInviteExpires>
<timerRegisterExpires>3600</timerRegisterExpires>
<timerRegisterDelta>5</timerRegisterDelta>
<timerKeepAliveExpires>120</timerKeepAliveExpires>
<timerSubscribeExpires>120</timerSubscribeExpires>
<timerSubscribeDelta>5</timerSubscribeDelta>
<timerT1>500</timerT1>
<timerT2>4000</timerT2>
<maxRedirects>70</maxRedirects>
<remotePartyID>false</remotePartyID>
<userInfo>None</userInfo>
</sipStack>
<autoAnswerTimer>0</autoAnswerTimer>
<autoAnswerAltBehavior>false</autoAnswerAltBehavior>
<autoAnswerOverride>true</autoAnswerOverride>
<transferOnhookEnabled>false</transferOnhookEnabled>
<enableVad>false</enableVad>
<preferredCodec>none</preferredCodec>
<dtmfAvtPayload>101</dtmfAvtPayload>
<dtmfDbLevel>3</dtmfDbLevel>
<dtmfOutofBand>avt</dtmfOutofBand>
<alwaysUsePrimeLine>true</alwaysUsePrimeLine>
<alwaysUsePrimeLineVoiceMail>true</alwaysUsePrimeLineVoiceMail>
<kpml>3</kpml>
<natEnabled>false</natEnabled>
<natAddress></natAddress>
<stutterMsgWaiting>2</stutterMsgWaiting>
<callStats>false</callStats>
<silentPeriodBetweenCallWaitingBursts>10</silentPeriodBetweenCallWaitingBursts>
<disableLocalSpeedDialConfig>false</disableLocalSpeedDialConfig>
<startMediaPort>10000</startMediaPort>
<stopMediaPort>20000</stopMediaPort>
<voipControlPort>5060</voipControlPort>
<dscpForAudio>184</dscpForAudio>
<dscpVideo>136</dscpVideo>
<dscpForTelepresence>128</dscpForTelepresence>
<ringSettingBusyStationPolicy>0</ringSettingBusyStationPolicy>
<softKeyFile>softKey7975.xml</softKeyFile>
<dialTemplate>dialplan.xml</dialTemplate>
<phoneLabel>PHONE LABEL</phoneLabel>
<sipLines>
<line button="1" lineIndex="1">
<featureID>9</featureID>
<featureLabel>55101</featureLabel>
<name>55101</name>
<displayName>55101</displayName>
<contact>CONTACT</contact>
<proxy>USECALLMANAGER</proxy>
<port>5060</port>
<autoAnswer>
<autoAnswerEnabled>2</autoAnswerEnabled>
</autoAnswer>
<callWaiting>3</callWaiting>
<authName>55101</authName>
<authPassword>Admin54321</authPassword>
<sharedLine>false</sharedLine>
<messageWaitingLampPolicy>3</messageWaitingLampPolicy>
<messageWaitingAMWI>1</messageWaitingAMWI>
<messagesNumber>VOICE MAIL NUMBER</messagesNumber>
<ringSettingIdle>4</ringSettingIdle>
<ringSettingActive>5</ringSettingActive>
<forwardCallInfoDisplay>
<callerName>true</callerName>
<callerNumber>false</callerNumber>
<redirectedNumber>false</redirectedNumber>
<dialedNumber>true</dialedNumber>
</forwardCallInfoDisplay>
<maxNumCalls>4</maxNumCalls>
<busyTrigger>2</busyTrigger>
</line>
<line button="3">
<featureID>21</featureID>
<featureLabel>LABEL BUTTON 2</featureLabel>
<speedDialNumber>NUMBER</speedDialNumber>
<featureOptionMask>1</featureOptionMask>
</line>
<line button="3">
<featureID>21</featureID>
<featureLabel>LABEL BUTTON 3</featureLabel>
<speedDialNumber>NUMBER</speedDialNumber>
<featureOptionMask>1</featureOptionMask>
</line>
<line button="4">
<featureID>21</featureID>
<featureLabel>LABEL BUTTON 4</featureLabel>
<speedDialNumber>NUMBER</speedDialNumber>
<featureOptionMask>1</featureOptionMask>
</line>
<line button="5">
<featureID>21</featureID>
<featureLabel>LABEL BUTTON 5</featureLabel>
<speedDialNumber>NUMBER</speedDialNumber>
<featureOptionMask>1</featureOptionMask>
</line>
<line button="6">
<featureID>21</featureID>
<featureLabel>LABEL BUTTON 6</featureLabel>
<speedDialNumber>NUMBER</speedDialNumber>
</line>
</sipLines>
</sipProfile>
<phoneServices>
<provisioning>0</provisioning>
<phoneService type="1" category="0">
<name>Missed Calls</name>
<url>Application:Cisco/MissedCalls</url>
<vendor></vendor>
<version></version>
</phoneService>
<phoneService type="2" category="0">
<name>Voicemail</name>
<url>Application:Cisco/Voicemail</url>
<vendor></vendor>
<version></version>
</phoneService>
<phoneService type="1" category="0">
<name>Received Calls</name>
<url>Application:Cisco/ReceivedCalls</url>
<vendor></vendor>
<version></version>
</phoneService>
<phoneService type="1" category="0">
<name>Placed Calls</name>
<url>Application:Cisco/PlacedCalls</url>
<vendor></vendor>
<version></version>
</phoneService>
<phoneService type="0" category="0">
<name>Australian Services</name>
<url>http://cisco.internect.net/</url>
<vendor></vendor>
<version></version>
</phoneService>
</phoneServices>
</device>
Original Help file i got from cisco forum :- https://community.cisco.com/t5/ip-telephony-and-phones/uc-9971-ip-phone/td-p/2752397
download link
Some useful links
https://community.freepbx.org/t/freepbx-12-cisco-7975/25813
https://usecallmanager.nz/sepmac-cnf-xml.html
https://888voip.com/configuring-cisco-7975-ip-phones-for-sip/
https://www.voip-info.org/asterisk-phone-cisco-79xx/