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转换思科SCCP话机为SIP话机
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更新于2023-03-03
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Converting a Cisco 7940/7960 SCCP Phone to a SIP Phone and the Reverse Process
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Converting a Cisco 7940/7960 SCCP Phone to a
SIP Phone and the Reverse Process
Document ID: 5455
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Enable SIP Functionality
Manually Configure the Phone Network Settings
Configure the Phone Network Settings via DHCP
Bootup Process for a Cisco 7940/7960 SIP IP Phone
SCCP Image 3.x/Earlier to SIP Image 6.x/Earlier and from SCCP Image 5.x to SIP Image 5.x/6.x
SCCP Image 3.x/Earlier and 5.x to SIP Image 7.x
SCCP Image 6.x/Later and SIP Image 7.x/Later
TFTP Server Log of a Phone Booting Up
Revert Back to a Cisco CallManager SCCP Image
SIP Images 4.x/Earlier to SCCP Images 5.x/Earlier
SIP Images 4.x/Earlier to SCCP Images 6.x/Later
SIP Images 5.x,6.x to SCCP Images 5.x/Later
SIP Images 7.x/Later to SCCP Images 5.x/Later
Converting SCCP Phones to SIP and reverse in Cisco Unified Communication Manager 5.x and 6.x
Common Issues and Troubleshooting Tips
TFTP Accessibility and Impact on Network
Obtain SCCP Firmware
"W210 TFTP Error : buffer full" Error
SIP Phone not Accepting SCCP Load
"Protocol Application Invalid" Error
"Image Authentication Failed" Error
"No Load Specified" Error
IP Phones go to Unprovisioned State
Troubleshooting Tips
Related Information
Introduction
Cisco 7940/7960 IP phones can support either the Skinny Call Control Protocol (SCCP) to run with Cisco
CallManager, the Session Initiation Protocol (SIP) (refer to RFC 2543 ), or the Media Gateway Control
Protocol (MGCP), but not more than one simultaneously. This is possible because they load different
firmware versions on bootup. This functionality is transparent to the end user, and you enable it through
changes to the basic text−based configuration files that the phones download from a Trivial File Transfer
Protocol (TFTP) server.
Refer to Cisco IP Phone 7960/7940 User Guide for SIP for more information about a Cisco SIP IP phone.
1
LCD
2
Line or Speed Dial buttons
3
Footstand adjustment
4
Softkeys
5
i button
6
On−screen mode buttons
7
Volume buttons
8
Function toggles
9
Scroll key
10
Dialing pad
11
Handset
Prerequisites
Requirements
Cisco recommends you have knowledge of these topics:
SIPSession Initiation Protocol•
SCCPSkinny Call Control Protocol•
Components Used
The information in this document is based on these software and hardware versions:
Cisco Unified CallManager 3.x and 4.x•
Cisco Unified Communication Manager 5.x and 6.x•
Note: Make sure the SIP protocol is supported by the Cisco Unified Callmanager with the Cisco IP Phone
model used for conversion. For example, SIP protocol for Cisco IP Phone 7906G and 7911G is supported
only with Cisco Unified Communication Manager version 5.x and above.
Conventions
Refer to the Cisco Technical Tips Conventions for more information on document conventions.
Enable SIP Functionality
Complete these steps in order to enable SIP functionality:
Download these files from Cisco SIP IP Phone 7940/7960 Software (registered customers only) and
place them in the root directory of your TFTP server (tftpboot on a UNIX machine):
P0S30100.binThis is the SIP image. Download the file in binary format, in order to ensure
that it is not corrupted.
Note: There are many different variations of this file, which depend on the version of
software that you load. These are some examples:
SIP Release 2.3 or earlier: P0S3xxyy.binThe xx variable is the version number, and
yy is the sub−version number.
◊
SIP Release 3.0 and later: P0S3−xx−y−zz.binThe xx variable is the major version
number, y is the minor version number, and zz is the sub−version number.
◊
SIP Release 5.0 and later: After this version is installed, you are not able to revert
back to versions earlier than 5.0. You can still change from SCCP images to SIP
images, but they both must be version 5.0 or later. Refer to Release Notes for Cisco
SIP IP Phone 7940/7960 Release 5.0 for more information.
◊
This table describes the meanings of the first four characters in the binary files
names:
First
Digit Second
Digit
Third
Digit
Fourth
Digit
P
represents
a Phone.
0 means
that it is a
combined
image
(application
and DSP).
Represents
the phone
Protocol: 0
for Skinny
and S for
SIP.
3
represents
the ARM
processor.
◊
Note: Choose Settings > Status > Firmware Versions in order to verify which image the
phone uses. Different phone models use different processors. This fourth digit can help
determine the model of phone for which the file is used.
♦
OS79XX.TXTThis file tells the Cisco 7940/7960 which binary to download from the TFTP
server. This file is case sensitive and must only contain the name of the file that you want to
load, without the .bin extension. For example, if you attempt to load the SIP version 2.3
software, it must contain only the line P0S30203. If you try to load versions 3.0 and later,
the file name must be in the format P0S3−xx−y−zz. For example, if you attempt to load the
SIP version 7.1 software, OS79XX.TXT must contain the line P0S3−07−1−00. The binary
referenced here must also be present in the TFTP root directory. Without this file, the phone
♦
1.
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