Cisco Systems 7912G, 7905G manual Table C-5 Action Descriptions

Page 191

Appendix C SIP Call Flows

 

 

 

Call Flow Scenarios for Successful Calls

 

Table C-5 Action Descriptions

 

 

 

 

 

 

 

 

 

Step

Action

Description

 

 

 

 

 

Step 1

INVITE—Cisco IP Phone A to SIP server

Cisco IP Phone A sends a call session

 

 

 

INVITE request to the SIP server to pass on to

 

 

 

Cisco IP Phone B.

 

 

 

 

 

Step 2

100 Trying—SIP server to Cisco IP Phone A

SIP server returns a 100 trying message,

 

 

 

indicating that the INVITE request has been

 

 

 

received.

 

 

 

 

 

Step 3

INVITE—SIP server to Cisco IP Phone B

SIP server sends the call session INVITE

 

 

 

request to Cisco IP Phone B.

 

 

 

 

 

Step 4

100 Trying—Cisco IP Phone B to SIP server

Cisco IP Phone B returns a 100 trying

 

 

 

message indicating that the INVITE request

 

 

 

has been received.

 

 

 

 

 

Step 5

180 Ringing—Cisco IP Phone B to SIP

Cisco IP Phone B sends a 180 ringing

 

 

server

response to the SIP server to pass on to

 

 

 

Cisco IP Phone A.

 

 

 

 

 

Step 6

180 Ringing—SIP server to Cisco IP Phone

SIP server sends the 180 ringing response to

 

 

A

Cisco IP Phone A.

 

 

 

 

 

Step 7

200 OK—Cisco IP Phone B to SIP server

Cisco IP Phone B sends a 200 OK message to

 

 

 

the SIP server indicating that a connection has

 

 

 

been established.

 

 

 

 

 

Step 8

200 OK—SIP server to Cisco IP Phone A

SIP server passes the 200 OK message to

 

 

 

Cisco IP Phone A.

 

 

 

 

 

Step 9

ACK—Cisco IP Phone A to SIP server

Cisco IP Phone A sends acknowledgement of

 

 

 

the 200 OK response to the SIP server to pass

 

 

 

on to Cisco IP Phone B.

 

 

 

 

 

Step 10

ACK—SIP server to Cisco IP Phone B

SIP server passes ACK response to

 

 

 

Cisco IP Phone B.

 

 

 

 

 

A two-way voice path is established between Cisco IP Phone A and Cisco IP Phone B.

 

 

 

 

 

Step 11

BYE—Cisco IP Phone A to SIP server

Cisco IP Phone A terminates the call session

 

 

 

and sends a BYE request to the SIP server

 

 

 

indicating that Cisco IP Phone A wants to

 

 

 

terminate the call.

 

 

 

 

 

 

 

 

 

Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

 

 

 

 

 

 

 

OL-4277-01

 

 

C-9

 

 

 

Page 190 Page 192
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Page 190 Page 192
Contents Corporate Headquarters Page Copyright 2003 Cisco Systems, Inc. All rights reserved Page N T E N T S Overview of Configuration Methods Default Boot Load Behavior Vii Setting Up and Placing a Call Without Using a SIP ProxyViii Using EncryptionResolving Problems Contacting TAC Debugging O S S a R Y D E Audience OverviewXii OrganizationXiii Related DocumentationObtaining Documentation World Wide Web Documentation CD-ROMXiv Obtaining Technical AssistanceOrdering Documentation Documentation FeedbackTechnical Assistance Center Cisco Connection OnlineXvi Language Mail AddressXvii Document ConventionsConvention Description Xviii Italic screen fontXix Waarschuwing Belangrijke VeiligheidsinstructiesVaroitus Tärkeitä Turvallisuusohjeita Avvertenza Importanti Istruzioni Sulla Sicurezza Warnung Wichtige SicherheitshinweiseXxi Aviso Instruções Importantes DE SegurançaXxii Varning! Viktiga SäkerhetsanvisningarXxiii Xxiv Hardware Overview Overview Cisco IP Phone Models 7905G and 7912GCisco IP Phone Models 7905G and 7912G Features OL-4277-01 Related Topics Software FeaturesProtocols Supplemental Services Basic ServicesProtocols, Basic Services, Supplemental Services, SIP-Specific ServicesSIP Functions SIP OverviewRelated Topic SIP ComponentsSIP Clients SIP Servers Prerequisites Installing the Cisco IP Phone Models 7905G and 7912GSafety Installing the Cisco IP Phone Models 7905G and 7912G Safety Connecting to the Network Power Source Design Providing Power to the Cisco IP PhoneRedundancy Feature Installing the Cisco IP Phone Models 7905G and 7912GRelated Topic Procedure Installing the Cisco IP Phone Models 7905G and 7912G Cisco IP Phone 7905G Cable Connections Cisco IP Phone 7912G Cable Connections Mounting the Phone to the Wall Procedure Parameter Values section on Verifying Installation OL-4277-01 Overview of Configuration Methods Configuring Cisco IP Phone Models 7905G and 7912G for SIPDefault Boot Load Behavior OL-4277-01 SEPxxxxxxxxxxxx.cfg.xml Example VLANSettingFeature BitsBasic Configuration Steps in a Tftp Server Environment Profile section on Procedure ReferenceSee the Network Parameters Making Settings with a Dhcp Server Parameter on Network Making Settings ManuallySetting Configuration Menu Web Basic and Additional SIP Services Minimum Important Basic SIP ServicesDefault Required ParametersNAT Minimum Maximum Default Parameter Description ValueNatip Configuring Refresh Interval Additional SIP ServicesEstablishing Authentication Parameters section on SIP Service Description ReferenceDNS SRV 8-2 and the SIP NAT/PAT Proxy Cisco IP phone supports next hop server Setting Up and Placing a Call Without Using a SIP Proxy UID DNS1IP Complete Reference of all Cisco IP Phone SIP ServicesConfigurable Feature Or on Web Phone Menu Related Parameter onDNS2IP PWDNtpip TOS Configuring the Cisco IP Phone Configuration Menus on the Cisco IP Phone Displaying a Configuration Menu Unlocking and Locking Configuration Parameters Editing Parameter Values Parameter Description To Change Network Configuration MenuNetwork Configuration Menu Parameter Description To Change Parameter Description To Change Press the Save softkey Dhcp URLParameter Description To Change Parameter Description To Change Encryption section on SIP Configuration MenuSIP Configuration Menu Parameters Parameter Description To Change NAT WAN IP Model Information MenuStatus Menu Server Using Profiles with Tftp Configuration Related Topics Setting Up the Tftp Server with Cisco IP Phone Software Using a Dhcp Server, Using a Dhcp ServerOther Dhcp Options You Can Set, Other Dhcp Options You Can Set Without Using a Dhcp Server Creating or Updating a Profile Profile Conventions Creating a Phone-Specific Profile Procedure Creating a Default Profile Gkdefault.cfg Using Encryption Syntax examples Refreshing the Cisco IP Phone Refreshing or Resetting the Cisco IP PhoneResetting the Cisco IP Phone OL-4277-01 A P T E R Accessing a Phone’s Web Procedure Device Information Viewing Statistical and Operational InformationField Explanation Network ConfigurationNetwork Statistics Field Explanation OL-4277-01 Profile and Web Page Parameters and Defaults Network Parameters Parameter Description Default valueValue type Integer Value type IP address Default value DNS1IP, DNS2IP Default value 0 use DhcpValue type Bitmap Default value 0x0000002B For debugging, see the Debugging section on SIP ParametersUID, PWD Agents can communicate with the phone Value type Bitmap Call Preference Parameters Call Preference Parameters Parameter Description Parameter Description Default value hia Default value 20 seconds Default value 0xFFFFFFFF Default value 0xFFFFFFFFparametersnetwork$startrange Tone Parameters Tone Parameters Default value 2,4,25 Audio Parameters Audio Parameters Profile Parameters Parameter Details OL-4277-01 = 0.5 * 10k + 9 n 1 * 3 Cadence with Two On-Off Pairs ReorderTone Parameter DetailsSyntax of the ReorderTone parameters is Cadence with Three On-Off Pairs ReorderTone Parameter Example1 Component Setting ExplanationReorderTone Parameter Example Reorder Tone Parameter Example 2 Explanation Bit Description ConnectMode DetailBit Description RxStat Dur=a,Pkt=b,Oct=c,LatePkt=d,LostPkt=e,AvgJit=f DialPlan Parameter DetailCharacter Action String Effect Dial Plan Rules ExampleUpgradecode Parameter Detail 0x0400, 0x0100 preceding tftpserverip Process Upgradelogo Parameter DetailOpen a command window and type the following command Add the following line to the Cisco IP Phone profile OL-4277-01 General Troubleshooting Tips Troubleshooting Cisco IP Phone Models 7905G and 7912GResolving Problems Wait for a few moments Plug in the Ethernet cable Resolving Problems Debugging Contacting TACDebugging Related Topics OL-4277-01 Values section on Call Preferences MenuTo display the Call Preferences menu, follow these steps See the Softkeys section on page A-6 for See the Other Features section on Parameter Description To Change Softkey Description SoftkeysDefault Other FeaturesFeature Description Phone Menu Parameter Equivalent ParametersLocal SIP Port SIPPort Login ID LoginID NAT WAN IP Address Supported SIP Request Methods SIP Call FlowsCall Flow Scenarios for Successful Calls Step Action Description Table C-2 Log Listing Table C-3 Action Descriptions Table C-4 Log Listing Expires Content-Length Invite Table C-5 Action Descriptions Log Listing Table C-6 Log Listing Table C-6 Log Listing ACK sip9314@192.168.3.232user=phone SIP/2.0 Via SIP/2.0/UDP BYE sip9314@192.168.3.232user=phone SIP/2.0 Via SIP/2.0/UDP OL-4277-01 Trying Proxy Authentication Required ACK Table C-7 Action Descriptions Step Action Description Table C-8 Log Listing Expires Content-Length Content-Type application/sdp Table C-8 Log Listing =9314 8644 8644 in IP4 192.168.3.232 s=Cisco 7905 SIP Call ACK sip9314@192.168.3.232user=phone SIP/2.0 Via SIP/2.0/UDP BYE sip9314@192.168.3.232user=phone SIP/2.0 Via SIP/2.0/UDP Specifications for Cisco IP Phone Models 7905G and 7912G Description Specification Physical SpecificationsElectrical Specifications Physical Interfaces Environmental SpecificationsSoftware Specifications Software Specifications GL-1 NumericsGL-2 GL-3 GL-4 GL-5 GL-6 GL-7 GL-8 GL-9 GL-10 GL-11 GL-12 IN-1 ACK C-1IN-2 IN-3 CDPIN-4 IN-5 DNSIN-6 Invite C-1IN-7 IN-8 IN-9 IN-10 Register C-1IN-11 SIPIN-12 IN-13 DND A-7Tftp IN-14 IN-15 IN-16
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7912G, 7905G specifications

Cisco Systems is a leading provider of networking and telecommunications equipment, and among its extensive range of products, the Cisco 7900 Series of IP phones has made a notable impact in enterprise communication. Key models in this series include the Cisco 7905G, 7912G, and 7902G, each designed to enhance productivity through advanced features, intuitive interfaces, and robust technology.

The Cisco 7905G is designed for basic telephony needs and is ideal for administrative environments or areas with high call volumes. It features a large single-line LCD display, providing users with clear visibility of call information. The phone supports Power over Ethernet (PoE), making installation easier and reducing clutter by eliminating the need for an additional power supply. Its hands-free and headset support enhances user convenience, allowing for easy multitasking during calls.

Moving on to the Cisco 7912G, this model is designed for more demanding communication requirements. It features a larger, backlit display, providing improved visibility in various lighting conditions. The Cisco 7912G supports up to 12 programmable line or feature keys, giving users the flexibility to tailor the phone to their specific needs. Additionally, it incorporates advanced audio technologies, such as wideband audio for enhanced voice clarity and a built-in speakerphone, allowing users to communicate effectively in busy environments.

The Cisco 7902G, while offering basic features, is a reliable choice for users who need straightforward, cost-effective telephony solutions. It features an intuitive design with three dedicated buttons for line status, a built-in speakerphone, and support for wideband audio. The phone is geared for users who require essential telephony features without the complexity of additional functionalities, making it suitable for front-desk and general office use.

Overall, these models within the Cisco 7900 series exemplify the company's commitment to providing high-quality enterprise communication tools. With a focus on advanced audio technologies, user-friendly interfaces, and adaptability to various business environments, the Cisco 7905G, 7912G, and 7902G cater to the diverse needs of modern organizations. As companies continue to pursue seamless communication, these IP phones remain a valuable asset in their telephony infrastructure, enhancing collaboration and productivity among teams everywhere.
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