IOS Conference Resources

voice-card 0     //enables motherboard DSP chips
dspfarm  //allows for DSPs for PRI card and VWIC interfaces
dsp services dspfarm   //allows transcoding and conferencing

sccp local l0   //binds SCCP process to interface

sccp ccm 10.1.1.1 identifier 1 priority 1 version 7.0+
sccp ccm 10.1.1.2 identifier 2 priority 2 version 7.0+

dspfarm profile 1 conference
associate application sccp
maximum conference-participants
maximum sessions
dspfarm conference


dspfarm profile 2 transcode
associate application sccp
codec g711ulaw
codec g729r8
maximum sessions


dspfarm profile 3 mtp
associate application sccp
codec pass-through
maximum sessions software 5000

sccp ccm group 1
associate ccm 1 priority 1
associate ccm 2 priority 2
associate profile 1 register IOS-BR2-CFB1
associate profile 2 register IOS-BR2-XCODE1
associate profile 3 register IOS-BR2-MTP1

• Same process for CME except sccp ccm bind commands point to CME ip source address

CUCM - Service Parameters

     Service Parameters are global settings on multiple CUCM services (CallManager, IP Voice Media, Extension Mobility, etc.) that may apply to all servers (clusterwide parameters) or to only specific nodes (server parameters).

     Keep in mind that for Service Parameters, there is an "Advanced" button at the top of the page which presents additional Service Parameter options!


Service Parameters

Parameter Name	Suggested Value	Parameter Value	Description
CDR Enabled Flag	True	False	Enables Call Detail Records
CDR Log Calls with Zero Duration Flag	False	False	Enables CDR for calls that never connected or that lasted for < 1 sec
Station KeepAlive Interval	30	30	Interval between KeepAlives from IP phones to CUCM
Station and Backup Server KeepAlive Interval	60	60	KeepAlive interval between phone and secondary CUCM
T301 Timer (Alerting Timeout)	180000	180000	How long CUCM waits to receive the Alerting message
T302 Timer (Interdigit Timeout)	10000	15000	Timer after each digit is pressed before pushing the call through
Strip + on Outbound Calls	False	False	CUCM strip + on outbound for MGCP GWs and SIP Trunks. H.323 ALWAYS strips the + sign.
Built-in Bridge Enable	On	Off	Enables builtin bridge to save on conferencing resources. G.711 supported only.
Device Mobility Mode	On	Off	Allows roaming phones to dynamically associate with the local device pool
Display Device Mobility Location During Phone Registration	True	True	Displays the Device Mobility location when booting up
Off-hook to First Digit Timer	15000	15000	Time CUCM waits for the first digit to be dialed
Privacy Setting	True	True	Enables (True) or disables (False) the Privacy feature
Allow Peer to Preserve H.323 Calls	True	False	Allows H.323 GW to preserve an active call during a loss of connection to CUCM
SIP Min-SE Value	1800	1800	Minimum Session Expiration timer for SIP
SIP Session Expires Timer	1800	1800	Interval between session refresh requests
Call Park Display Timer	15	10	Time that Call Park number is displayed
Call Park Reversion Timer	60	60	Call reverts back to original phone if not answered
Party Entrance Tone	False	True	Determines if a tone will play when a party joins or exits a call with more than two parties (barge, cbarge, conference, join, meetme)
Block Offnet to Offnet Transfer	False	False	Blocks the ability to transfer an offnet call to another offnet number
Suppress MOH to Conference Bridge	True	True	Don’t play MOH on conference bridges
Drop Ad Hoc Conference	Never	Never	Ad Hoc Conference bridges stay up as long as two users are on the conference
Maximum Ad Hoc Conference	16	4	Maximum Ad Hoc Conference Participants
Maximum MeetMe Conference Unicast	16	4	Maximum MeetMe Conference Participants
Advanced Ad Hoc Conference Enabled	True	False	Conference Chaining and control Enabled
Forward Maximum Hop Count	8	12	Maximum times a single call can be forwarded or diverted. For Q.SIG calls, the maximum value is 15.
Forward No Answer Timer	16	12	The Global FNA timer setting
Max Forward Hops to DN	8	12	Max number of forwards allowed for a DN. Prevents call routing loops within CUCM
G.722 Codec Enabled	Enabled	Enabled	Enabled G.722 advertisement
Automated Alternate Routing Enable	False	False	Enables CAC Automated Alternate Routing
Single Button Barge/CBarge Policy	CBarge	Off	Sets the Single Button Barge feature to use barge, CBarge or disable
Allow Barging When Ringing	False	False	Allows users to barge before the phone is answered
Stop Routing on Out of Bandwidth Flag	False	False	Call routing behavior for calls through trunks when not enough bandwidth is available. Used for subsequent route lists and AAR/Locations.

.

CUCM - MOH Conversion

In order for Cisco to be able to accept/upload a Music On Hold (MOH) file, the file must meet the specific property requirements below.

Format: WAV

Encoding: 8-bit CCITT u-Law or a-Law (stereo/mono)

Average Data Rate: 8 kbps

Sample Rates: 8 kHz, 16 kHz, 32 kHz, 48 kHz

Audio Sample Size: 16-bit PCM (stereo/mono) 

Channels: 1 (Mono) 

 *** CCITT uLaw, 8 kHz, 8-bit, 8 Kbps, mono ***

A good and free program to use for this is Audacity, a digital audio editor. Here's how to convert to Cisco's MOH specifications using Audacity 1.3.x.

1. Launch Audacity 1.3.x
2. Open the Audio File you are looking to use as an MOH file
3. Locate the Project Rate (Hz) in the bottom left corner. Set this value to 8000.
4. In the track bar, click the drop down menu and select "Split Stereo to Mono"
5. In the track bar, select "Set Sample Format", and choose "16-bit PCM"
6. Click File > Export...
7. Set the file name as desired, and verify that the File Name has NO SPACES as they are not allowed
8. Under "Save as type:" select "Other uncompressed files"
9. Click on the "Options..." button
10. Under Header select "WAV (Microsoft)"
11. Under Encoding select "U-Law"
12. Click OK and then click Save

You now have a file that is MOH worthy. Feel free to upload and test. Make sure that if you have multiple CUCM nodes/subscribers that you upload the file to each subscriber and configure accordingly.

.

Music On Hold (MOH)

Music On Hold allows callers to hear music while on hold.

CTI Devices do not support Multicast

Audio Source Format

1. Most WAV files are supported
1. 16-bit PCM (stereo/mono)
2. 8-bit CCITT a-law or mu-law (stereo/mono)
3. 48kHz, 32kHz, 16kHz, 8kHz sample rates
2. MP3 format is NOT supported
3. 
   

Resource Selection

        If Phone A puts Phone B on hold, the Audio Source within Phone A's configuration are selected, but Phone B's Media Resource Group is utilized. This optimizes the Media Resource utilization as Phone B will use the resources closest to it.

MOH Audio Sources are selected in the following order:

1. Line
2. Device
3. Common Device Configuration (CDC)
4. Clusterwide Parameters

Media Resource Group Lists (MRGL) are selected in the following order:

1. Device
2. Device Pool
3. System Default
1. System default resources contain any Media Resources not utilized by ANY Media Resource Groups (MRG)
2. Always Unicast

.