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No audio issue - Cisco IP phone 7821/3905 - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/no-audio-issue-cisco-ip-phone-7821-3905/td-p/4047152
Hello Team, We are facing no audio issue in 7-8 CP-7821/3905 phones and after rebooting its working fine . I am following this doc :
Cisco Bug: CSCuc17539 - 3905 Phone - No audio
https://quickview.cloudapps.cisco.com/quickview/bug/CSCuc17539
Symptom: When we call the 3905 phone, the phone starts to ring and we are able to answer the call by lifting the handset or by pressing the speaker button. However, after we answer the call there is no audio on either side. Basically, the phone does respond to the SIP Messages (which shows that its not completely hung), but it does not play the RTP it receives …
Cisco Unified SIP Phone 3905 Administration Guide for ...
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/3905/10_0/english/admin_guide/IP05_BK_A6E3F5AB_00_adminguide-3905-10_0/IP05_BK_A6E3F5AB_00_adminguide-3905-10_0_chapter_01010.html
Cisco Unified SIP Phone 3905 Administration Guide for Cisco Unified Communications Manager 10.0 . Chapter Title. Troubleshooting . PDF - Complete Book (3.46 MB) PDF - This Chapter (1.38 MB) View with Adobe Reader on a variety of devices. ePub - Complete Book (685.0 KB)
Cisco Unified SIP Phone 3905 Data Sheet - Cisco
https://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/unified-sip-phone-3905/data_sheet_c78-651588.html
Product Overview. The Cisco ® Unified SIP Phone 3905 is a cost-effective, entry-level IP phone that addresses the need for basic voice communications with common Cisco Unified Communications features in an attractive design that is also budget-friendly. The phone can fill the communication needs of cubicle, retail, classroom, manufacturing floor and hallway, …
How to troubleshoot one-way / no audio issues - Cisco ...
https://community.cisco.com/t5/collaboration-voice-and-video/how-to-troubleshoot-one-way-no-audio-issues/ta-p/3164442
How to check really quick if the phones are sending / receiving RTP (audio). * Open the web page for 2 test phones, then click the 'stream 1' link located at the left handed side of the page, and check if the IP address and port match the information on both sides, keep pressing the 'stream 1' link and you will notice that the Tx and Rx stats ...
Cisco Unified SIP Phone 3905 User Guide for Cisco …
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/3905/10_0/english/user_guide/IP05_BK_U2FC56CE_00_user-guide-3905_10_0/IP05_BK_U2FC56CE_00_user-guide-3905_10_0_chapter_00.html
Book Title. Cisco Unified SIP Phone 3905 User Guide for Cisco Unified Communications Manager 10.0 (SIP) Chapter Title. Getting Started. PDF - Complete Book (2.35 MB) PDF - This Chapter (1.38 MB) View with Adobe Reader on a variety of devices
Cisco Unified SIP Phone 3905 - Cisco
https://www.cisco.com/c/en/us/products/collaboration-endpoints/unified-sip-phone-3905/index.html
The Cisco Unified SIP Phone 3905 includes the following features: Single-line IP phone with support for up to two concurrent calls. Graphical 128 x 32-pixel monochrome display with a two-way navigation button. Full duplex speakerphone for flexibility with hands-free communications. Fixed keys for common telephony features: hold, redial ...
Cisco Bug: CSCvg73116 - CP 3905 no ring back when calling ...
https://quickview.cloudapps.cisco.com/quickview/bug/CSCvg73116
Cisco CP 3905 - No Ringback played after initial announcement Dear, I am facing problem of this phone running out of ringback after an initial announcement. This problem has already been resolved in the 8800 and 7800 family phones The caveats that solved this problem is the CSCvn57643 - No ringback tone played after initial announcement Would ...
Cisco Unified SIP Phone 3905 User Guide for Cisco Unified ...
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/3905/10_0/english/user_guide/IP05_BK_U2FC56CE_00_user-guide-3905_10_0/IP05_BK_U2FC56CE_00_user-guide-3905_10_0_chapter_01.html
Cisco Unified SIP Phone 3905 User Guide for Cisco Unified Communications Manager 10.0 (SIP) Chapter Title. Basic Operations. PDF - Complete Book (2.35 MB) PDF - This Chapter (1.12 MB) View with Adobe Reader on a variety of devices. ePub - …
Cisco CP-3905 - VoIP Supply
https://www.voipsupply.com/cisco-cp-3905
Cisco 3905 Unified SIP Phone Overview The single-line Cisco Unified SIP Phone 3905 supports two calls per line. Fixed keys for redial, transfer, and hold/resume, along with a full-duplex speakerphone and two-line display, which comes standard, deliver a more productive, easier-to-use, and flexible endpoint experience.
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