wget --no-check-certificate --header="Cookie: s_sess=..." \ https://software.cisco.com/download/release/8.6.6.1/CiscoIPCommunicatorSetup.exe Extract MSI using:
msiexec /i CiscoIPCommunicator.msi /quiet /norestart \ ADDLOCAL=ALL SKIPFIRSTSTARTDIALOG=1 \ INSTALLDIR="C:\Program Files (x86)\Cisco Systems\CIPC" [HKEY_LOCAL_MACHINE\SOFTWARE\Cisco Systems\Model\7970] "DisableVideo"=dword:00000001 ; Prevents video codec negotiation errors "CodecPriority"="711,729,722" ; Forces G.711 fallback over G.729 to reduce CPU "TCPKeepAlive"=dword:0000001e ; 30 sec – prevents firewall timeout drops 5. Network & Firewall Deep Configuration CIPC uses non-standard ephemeral ports dynamically. Unlike hardware phones, it does not support NAT traversal natively (no STUN). cisco ip communicator 8.6.6.1 download
| Protocol | Port Range | Direction | Purpose | |----------|------------|-----------|---------| | SCCP (TCP) | 2000 (fixed) | Outbound | Call control to CUCM | | RTP (UDP) | 16384 – 32768 | Bidirectional | Audio stream | | TFTP (UDP) | 69 | Outbound | Configuration download | | CAPF (TCP) | 3804 | Outbound | Certificate enrollment (LSC) | wget --no-check-certificate --header="Cookie: s_sess=
CiscoIPCommunicatorSetup_8.6.6.1.exe /a admin_install Silent install parameters: | Protocol | Port Range | Direction |