I cant connct more than 6 phones to conference on CUCM 7 with HW CFB
I have problem with connecting more than 6 phones to conference. I'm using hardware conference bridge Cisco 2811 (see below).
When I want connect 7th phone to conference and I press "Conference" button after call was established, 7th phone is connected to conference but phone which I calling from was disconnected.
If you need any other things from configurration of router tell me.
You can see output from configuration during conference with 6 phones.
I think that problem is DSP SHARING, but I can't find article which tell me how to resolve it. I think that voice router don't know use channels from other DSP and it is using only 6 channels which is on one DSP (if you look below on 'sh dspfarm all' there is what I mean)
Thank for any help
CUCM: version 7.1.3
Voice router (sh version):
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9_IVS_LI-M), Version 12.4(20)T3, RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Tue 28-Apr-09 15:56 by prod_rel_team
ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
RT-VOICE-02 uptime is 45 minutes System returned to ROM by reload at 17:32:53 CET Tue Nov 2 2010 System restarted at 17:34:35 CET Tue Nov 2 2010 System image file is "flash:c2800nm-adventerprisek9_ivs_li-mz.124-20.T3.bin"
This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately.
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Cisco 2811 (revision 53.51) with 247808K/14336K bytes of memory. Processor board ID FCZ12247165 2 FastEthernet interfaces 1 Channelized/Clear E1/PRI port 1 Virtual Private Network (VPN) Module DRAM configuration is 64 bits wide with parity enabled. 239K bytes of non-volatile configuration memory. 255488K bytes of ATA CompactFlash (Read/Write)
Configuration register is 0x2102
Voice router (show dspfarm all):
RT-VOICE-02#sh dspfarm all DSPFARM Configuration Information: Admin State: UP, Oper Status: ACTIVE - Cause code: NONE Transcoding Sessions: 8(Avail: 8), Conferencing Sessions: 10 (Avail: 10) Trans sessions for mixed-mode conf: 0 (Avail: 0), RTP Timeout: 60 Connection check interval 60 Codec G729 VAD: ENABLED sess_id conn_id stype mode codec pkt ripaddr rport sport
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