Cisco Unified Call Manager Express(CUCME) provides software conference as a default feature that only allows 3 calling parties on the conferenc
e.
CUCME also provides more scalable hardware based conference bridge. Yes, it requires addition DSPs. ( PVDM module )
Software Conference
– No additional hardware(PVDM module) is required.
– Max 3 calling parties in conference.
– The participants must all be using the same codec.
– Ad-hoc only.
Hardware Conference
– Additional hardware(PVDM module) is required
– Max 16 parites for Ad-hoc conference mode
– Max 32 parites for meetme conference mode.
Hardware conference feature provides Ad-hoc and Meetme conference mode.
Ad-hoc : The person controlling the conference presses the telephone conference button and adds callers one by one.
Meetme : Participants call in to a central number and are joined in a single conference.
*Participants whose end devices use different codec types are joined in a single conference; no additional transcoding resource is needed.
Software Conference Bridge
1. How to setup
CUCME(config)# telephony-service
CUCME(config-telephony)# max-conferences max-conference-number [gain -6 | 0 | 3 | 6]
ex) max-conferences 8 gain -6 <— maximum number of conferences for a Cisco Unified IP phone to 8 and configures a gain of 6 db for inbound audio packets from remote PSTN or VoIP calls joining a conference
* gain – Amount to increase the sound volume of VOIP and PSTN calls joining a conference call, in decibels. The default = – 6.
CUCME(config-telephony)# end
Hardware Conference Bridge
1. How to setup
Lab System environment
– Router 2811 (Version 15.1(4)M8), 256MB.
– CME ver. 8.6
– VIC-4FXS/DID
– PVDM2-8 and PVDM2-64
2. Enabling DSP Farm Services for a Voice Card
voice-card 0 <- show dspfarm all
dsp services dspfarm
3. Configuring Join and Leave Tones
voice class custom-cptone jointone
dualtone conference
frequency 600 900
cadence 300 150 300 100 300 50
!
voice class custom-cptone leavetone
dualtone conference
frequency 400 800
cadence 400 50 200 50 200 50
4. Configuring SCCP for Cisco Unified CME
sccp local Vlan1
sccp ccm xx.xx.xx.xx identifier 1 priority 1 version 7.0
sccp
5. Configuring the DSP Farm
dspfarm profile 1 conference
codec g729ar8
codec g729abr8
codec g729r8
codec g729br8
codec g711ulaw
codec g711alaw
maximum sessions 4
conference-join custom-cptone jointone
conference-leave custom-cptone leavetone
associate application SCCP
no shut
6. Associating Cisco Unified CME with a DSP Farm Profile
sccp ccm group 1
bind interface Vlan1
associate ccm 1 priority 1
associate profile 1 register conference
7. Enabling Multi-Party Ad-Hoc and Meet-Me Conferencing
telephony-service
conference hardware
transfer-system full-consult
sdspfarm units 5 <–Specifies the maximum number of DSP farms that are allowed to be registered to the SCCP server
sdspfarm conference mute-on 111 mute-off 222
sdspfarm tag 1 conference
* Tip: To determine sdspfarm units, try "show dsp-group all"
Show commands
show dsp-group all
show sccp ccm group [group-number]
show dspfarm profile [profile number]
show dspfarm all
show sccp
show sccp connections
show media resource status
8. Configuring ephone-template(for meetme admin)
ephone-template 1
conference admin
softkeys connected Endcall Trnsfer Hold Confrn Acct ConfList Flash HLog Join Park RmLstC Select
softkeys hold Resume Join Newcall Select
softkeys idle Redial Cfwdall Dnd ConfList Gpickup HLog Join Login Newcall Pickup RmLstC
softkeys seized Redial Endcall Meetme Cfwdall CWOff Callback Gpickup HLog Pickup
9. Configuring ephone DN
From below example;
– Two Ad-hoc conferences : Max 16 parties for each conference.
– Single Meetme conference : Max 16 parties for the conference.
ephone-dn 45 octo-line
number A1000
description ad-hoc
name Conference
conference ad-hoc
no huntstop
ephone-dn 46 octo-line
number A1000
description ad-hoc
name Conference
conference ad-hoc
preference 1
ephone-dn 47 octo-line
number A2000
description ad-hoc
name Conference
conference ad-hoc
no huntstop
ephone-dn 48 octo-line
number A2000
description ad-hoc
name Conference
conference ad-hoc
preference 1
ephone-dn 49 octo-line
number 5000
description meet-me
conference meetme
no huntstop
ephone-dn 50 octo-line
number 5000
description meet-me
conference meetme
preference 1
Show commands
show ephone-dn conference
show telephony-serivce conference hardware detail
10. Configuring Examples
In the following example, extension 1111 initiates a three-way conference. After the conference is established, extension 1111 can press the Confrn soft key to disconnect the last party that was connected and remain connected to the first party that was connected. If extension 1111 hangs up from the conference, the other two parties remain connected if one of them is local to the Cisco Unified CME system.
ephone-dn 10
number 1111
ephone 20
button 1:10
keep-conference drop-last local-only
In the following example, extension 3666 initiates a three-way conference. After the conference is established, extension 3666 can press the Confrn soft key to disconnect the last party that was connected and remain connected to the first party that was connected. Also, extension 3666 can hang up or press the EndCall soft key to leave the conference and keep the other two parties connected.
ephone-dn 10
number 1111
ephone 25
button 1:36
keep-conference drop-last endcall
In the following example, extension 3777 initiates a three-way conference. After the conference is established, extension 3777 can press the Confrn soft key to disconnect the last party that was connected and remain connected to the first party that was connected. Also, extension 3777 can hang up or press the EndCall soft key to leave the conference and keep the other two parties connected only if one of the two parties is local to the Cisco Unified CME system.
ephone-dn 38
number 3777
ephone 27
button 1:38
keep-conference drop-last endcall local-only
In the following example, extension 3999 initiates a three-way conference. After the conference is established, extension 3999 can hang up or press the EndCall soft key to leave the conference and keep the other two parties connected only if one of the two parties is local to the Cisco Unified CME system. Extension 3999 can also use the Confrn soft key to break up the conference but stay connected to both parties.
ephone-dn 39
number 3999
ephone 29
button 1:39
keep-conference endcall local-only
Tips and Troubleshooting
1. To see a status of active and inactive participant of each conference
3 parties are in each of conference bridge.
CUCME# show ephone-dn conference
type active inactive numbers
=======================================
Ad-hoc 3 13 A1000
DN tags: 45, 46
Ad-hoc 3 13 A2000
DN tags: 47, 48
Meetme 0 16 5000
DN tags: 49, 50
6 parties are in first Ad-hoc conference bridge.
CUCME#show ephone-dn conference
type active inactive numbers
=======================================
Ad-hoc 6 10 A1000
DN tags: 45, 46
Ad-hoc 0 16 A2000
DN tags: 47, 48
Meetme 0 16 5000
DN tags: 49, 50
2. To see who initiated the conference call and who is master of the conference call.
CUCME#show telephony-service conference hardware
Conference Type Active Max Peak Master MasterPhone Last
cur(initial)
=============================================================================================
5000 Meetme 3 8 3 1001 Chris Y 1 ( 1) 1003 Joshua
A1000 Ad-hoc 4 8 4 1002 Janice 2 ( 2) 1004 Michael
3. To see a status of DSP level on the conference
CUCME#show dspfarm all
Dspfarm Profile Configuration
Profile ID = 1, Service = CONFERENCING, Resource ID = 1
Profile Description :
Profile Service Mode : Non Secure
Profile Admin State : UP
Profile Operation State : ACTIVE
Application : SCCP Status : ASSOCIATED
Resource Provider : FLEX_DSPRM Status : UP
Number of Resource Configured : 8
Number of Resource Available : 8
Maximum conference participants : 8
Codec Configuration: num_of_codecs:6
Codec : g711ulaw, Maximum Packetization Period : 30 , Transcoder: Not Required
Codec : g711alaw, Maximum Packetization Period : 30 , Transcoder: Not Required
Codec : g729ar8, Maximum Packetization Period : 60 , Transcoder: Not Required
Codec : g729abr8, Maximum Packetization Period : 60 , Transcoder: Not Required
Codec : g729r8, Maximum Packetization Period : 60 , Transcoder: Not Required
Codec : g729br8, Maximum Packetization Period : 60 , Transcoder: Not Required
SLOT DSP VERSION STATUS CHNL USE TYPE RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED
0 5 28.3.11 UP N/A FREE conf 1 – – –
0 5 28.3.11 UP N/A FREE conf 1 – – –
0 6 28.3.11 UP N/A FREE conf 1 – – –
0 6 28.3.11 UP N/A FREE conf 1 – – –
0 7 28.3.11 UP 1 USED conf 1 95 1453 1451
0 7 28.3.11 UP 1 USED conf 1 96 1453 1450
0 7 28.3.11 UP 1 USED conf 1 98 1393 1388
0 7 28.3.11 UP N/A FREE conf 1 – – –
0 8 28.3.11 UP 1 USED conf 1 86 11377 11377
0 8 28.3.11 UP 1 USED conf 1 87 11377 11375
0 8 28.3.11 UP 1 USED conf 1 89 11296 11287
0 8 28.3.11 UP N/A FREE conf 1 – – –
4. To see how many DSP units on the router
CME#show dsp-group all
DSP groups on slot 0:
dsp 1:
State: UP, firmware: 28.3.11
Max signal/voice channel: 8/8
Max credits: 160
num_of_sig_chnls_allocated: 4
Transcoding channels allocated: 0
Group: FLEX_GROUP_VOICE, complexity: FLEX
Shared credits: 130, reserved credits: 0
Signaling channels allocated: 4
Voice channels allocated: 2
Credits used (rounded-up): 30
Voice channels:
Ch01: voice port: 0/0/0, codec: g711ulaw, credits allocated: 15
Ch02: voice port: 0/0/1, codec: g711ulaw, credits allocated: 15
dsp 5:
State: UP, firmware: 28.3.11
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_CONF, complexity: CONFERENCE
Shared credits: 0, reserved credits: 240
Codec: CONF_G729, maximum participants: 8
Sessions per dsp: 2
dsp 6:
State: UP, firmware: 28.3.11
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_CONF, complexity: CONFERENCE
Shared credits: 0, reserved credits: 240
Codec: CONF_G729, maximum participants: 8
Sessions per dsp: 2
dsp 7:
State: UP, firmware: 28.3.11
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_CONF, complexity: CONFERENCE
Shared credits: 0, reserved credits: 240
Codec: CONF_G729, maximum participants: 8
Sessions per dsp: 2
Conference sessions:
Sess01: Credits allocated: 120
dsp 8:
State: UP, firmware: 28.3.11
Max signal/voice channel: 16/16
Max credits: 240
num_of_sig_chnls_allocated: 0
Transcoding channels allocated: 0
Group: FLEX_GROUP_CONF, complexity: CONFERENCE
Shared credits: 0, reserved credits: 240
Codec: CONF_G729, maximum participants: 8
Sessions per dsp: 2
Conference sessions:
Sess01: Credits allocated: 120
4. To see how allocated DSP in concurrent time.
CUCME# show dspfarm all
Dspfarm Profile Configuration
Profile ID = 1, Service = CONFERENCING, Resource ID = 1
Profile Description :
Profile Service Mode : Non Secure
Profile Admin State : UP
Profile Operation State : ACTIVE
Application : SCCP Status : ASSOCIATED
Resource Provider : FLEX_DSPRM Status : UP
Number of Resource Configured : 8
Number of Resource Available : 8
Maximum conference participants : 8
Codec Configuration: num_of_codecs:6
Codec : g711ulaw, Maximum Packetization Period : 30 , Transcoder: Not Required
Codec : g711alaw, Maximum Packetization Period : 30 , Transcoder: Not Required
Codec : g729ar8, Maximum Packetization Period : 60 , Transcoder: Not Required
Codec : g729abr8, Maximum Packetization Period : 60 , Transcoder: Not Required
Codec : g729r8, Maximum Packetization Period : 60 , Transcoder: Not Required
Codec : g729br8, Maximum Packetization Period : 60 , Transcoder: Not Required
SLOT DSP VERSION STATUS CHNL USE TYPE RSC_ID BRIDGE_ID PKTS_TXED PKTS_RXED
0 5 28.3.11 UP N/A FREE conf 1 – – –
0 5 28.3.11 UP N/A FREE conf 1 – – –
0 6 28.3.11 UP N/A FREE conf 1 – – –
0 6 28.3.11 UP N/A FREE conf 1 – – –
0 7 28.3.11 UP N/A FREE conf 1 – – –
0 7 28.3.11 UP N/A FREE conf 1 – – –
0 8 28.3.11 UP 1 USED conf 1 86 27206 27206
0 8 28.3.11 UP 1 USED conf 1 108 26819 26812
0 8 28.3.11 UP 1 USED conf 1 89 27125 24423
0 8 28.3.11 UP 1 USED conf 1 102 7503 7498
0 8 28.3.11 UP 1 USED conf 1 105 5695 5694
0 8 28.3.11 UP 1 USED conf 1 111 3318 3317
0 8 28.3.11 UP N/A FREE conf 1 – – –
Total number of DSPFARM DSP channel(s) 8
How to use it?
Ad-hoc
1.Call 1st destination party
2. Once 1st caller has picked up the phone, press "Confrn" button and call 2nd destination party.
3. Once 2nd caller has picked up the phone, press "Confrn" again to complete setup Ad-hoc conference.
4. If you want to add more party to the conference, repeat step 1~3.
Meetme
1. Only designated phone(master) can initiate a meetme conference call.
* ex) Apply ephone-template 1
2. From the meetme admin(master) phone, press "meetme" button and dial meetme conference phone number (ex 5000). After beep sound, meetme conference call will be initialized.
3. Now, all other parties can join the meetme conference by dialing 5000 in above cases.
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