Chris Deren

Member Since: Jan 26, 2005

English
Chris Deren's Activity on Cisco Support Community
Currently displaying 50 results

Chris Deren has commented on LDAP Integration with CUCM 8.6 with Multiple OU in 2008 R2

19 hours 55 min ago
Thank you very much Jamie, I hope it was an honest mistake from owaisqadri and...

Chris Deren has commented on Unified External Mask

3 days 18 hours ago
Don't use translation use transformation pattern.

Chris Deren has commented on Why Cannot Connect Cisco 7975G IP Phones to Cisco 2911 router

3 days 19 hours ago
Are other phones working?What is the issue?Is phone getting IP address and...

Chris Deren has commented on Unified External Mask

3 days 19 hours ago
Set it either as External phone number mask on the phone, route pattern, route...

Chris Deren has commented on CUBE not re-transmitting DTMF?

1 week 3 days ago
Add "incoming called-number ." to one of your SIP dial-peers as by...

Chris Deren has commented on Expressway MRA Multiple Clusters

1 week 4 days ago
I think "Partitioned Unified Communications services deployment" is...

Chris Deren has commented on Cisco BE6k with CUCM 10.X integration with Siemens with Hipath 3350 and 3550

1 week 4 days ago
If the Siemens supports SIP or H323 you can attempt to simply create a trunk...

Chris Deren has commented on CME call forwarding to wrong number

1 week 5 days ago
Call is not matching anything:"Cause i = 0x8281 - Unallocated/unassigned...

Chris Deren has commented on CME call forwarding to wrong number

1 week 5 days ago
You missed the debug. Also, provide "debug voice dialpeer"

Chris Deren has commented on CUCM configuration for SIP trunk pilot testing.

1 week 5 days ago
Since this is a pilot and you want to test it before you put it into production...

Chris Deren has commented on CUCM configuration for SIP trunk pilot testing.

1 week 5 days ago
Not much to it:create SIP profilecreate SIP trunk security profilecreate SIP...

Chris Deren has commented on LDAP Integration with CUCM 8.6 with Multiple OU in 2008 R2

1 week 5 days ago
Here are your choices:1. if you need all users from any containers from your...

Chris Deren has commented on LDAP Integration with CUCM 8.6 with Multiple OU in 2008 R2

1 week 5 days ago
That is how it works, you do not bundle them together, this is the reason you...

Chris Deren has commented on LDAP Integration with CUCM 8.6 with Multiple OU in 2008 R2

1 week 5 days ago
OK, so are you good now?You can have up to 20 LDAP integrations with CUCM 10+...

Chris Deren has commented on LDAP Integration with CUCM 8.6 with Multiple OU in 2008 R2

1 week 5 days ago
George is correct, it seems like you are trying to bundle them together instead...

Chris Deren has commented on Need help with Caller-ID (not working) for site in Mexico

1 week 5 days ago
This is not ISDN PRI, based on your config this is E1-CAS circuit:"ds0-...

Chris Deren has commented on VG224 cannot fax/call to external

1 week 5 days ago
Since you are using SCCP for the control of the analog ports you need to check...

Chris Deren has commented on Expressway MRA Multiple Clusters

1 week 5 days ago
ILS does not allow phone from one cluster to register to another cluster, ILS...

Chris Deren has commented on Jabber Certificate

1 week 5 days ago
You can sign all certs internally as you describe except for the Expressway-E...

Chris Deren has commented on dhcp subnet

2 weeks 18 hours ago
How is this DHCP server related to your voice servers?  I am assuming you...

Chris Deren has commented on Jabber Certificate

2 weeks 18 hours ago
Each application has directions on how to do this, some examples:http://www....

Chris Deren has commented on UCL and VG248

2 weeks 18 hours ago
Interestingly here is what I see:MGCP FXS ports do not require any license...

Chris Deren has commented on 7821 on CUCM 10.5 call fail

2 weeks 1 day ago
Did you read this:http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/...

Chris Deren has commented on Media resources sharing

2 weeks 1 day ago
Many good examples out there, here is one by googling: https://voice411....

Chris Deren has commented on Cisco IP Communicator 7.0.3.0

2 weeks 1 day ago
So, which sound device is selected? Can you share a screenshot of your audio...

Chris Deren has commented on Jabber Certificate

2 weeks 1 day ago
Did you review all install/config documentation for IMP/Expressway/etc as this...

Chris Deren has commented on UCL and VG248

2 weeks 1 day ago
Both MGCP and SCCP will enforce the license as ports are configured as devices...

Chris Deren has commented on CAP bandwidth in addition to QoS... is this efficient?

2 weeks 5 days ago
First change your LLQ policy map to:class-map match-any call_signaling ...

Chris Deren has commented on Unity Connection System Call Handler Caller Input allowed only after Standard Greeting

2 weeks 5 days ago
I am not aware of achieving this in UCXN. Sorry.

Chris Deren has commented on CAP bandwidth in addition to QoS... is this efficient?

2 weeks 5 days ago
QoS is meat to help in situations like this, sounds like your QoS policy is not...

Chris Deren has commented on CUCM 10.5 - CSR/SAN issue

3 weeks 12 hours ago
can you not add multiple SANs by separating them via comma when issuing "...

Chris Deren has commented on CUCM 10.5 - CSR/SAN issue

3 weeks 12 hours ago
You need to include the SAN with your CSR, to do that you need to add it via...

Chris Deren has commented on Device type summary in CUCM9+

3 weeks 5 days ago
Is it not there under Unified Reporting?

Chris Deren has commented on C3925 upgrade from 15.0(1)M4 to 15.3(3).M1 - no outgoing calls forwarded through lync

3 weeks 5 days ago
Also, ensue you are not running into IOS toll-fraud prevention introduced in 15...

Chris Deren has commented on C3925 upgrade from 15.0(1)M4 to 15.3(3).M1 - no outgoing calls forwarded through lync

3 weeks 5 days ago
Do not use 15.3.3M1 as there is M3 and M4 available.  Try one of those. If...

Chris Deren has commented on Cisco 2951 VWIC3-1MFT-T1/E1 - Line Code Violations and Path Code Violations

3 weeks 6 days ago
It is common.

Chris Deren has commented on Cisco 2951 VWIC3-1MFT-T1/E1 - Line Code Violations and Path Code Violations

3 weeks 6 days ago
Did you try different cable?  Believe it or not that fixes a lot of...

Chris Deren has commented on UCCX HA and UCM on C240 UCS servers

3 weeks 6 days ago
You can definitely host it on the same server, but since you have a pair of...

Chris Deren has commented on Cisco 2951 VWIC3-1MFT-T1/E1 - Line Code Violations and Path Code Violations

3 weeks 6 days ago
Did you try different RJ48 (not RJ45) cables?Can you provide "show network...

Chris Deren has commented on auto qos

3 weeks 6 days ago
No.

Chris Deren has commented on CCM Group

4 weeks 10 hours ago
Having an IP address on any dial-peers tells the IOS that it's secured IP...

Chris Deren has commented on CCM Group

4 weeks 10 hours ago
As suspected toll-fraud prevention on IOS is blocking the call, see "CCAPI...

Chris Deren has commented on CCM Group

4 weeks 10 hours ago
Is the 911 non-working pattern pointing to the same route list as other working...

Chris Deren has commented on CCM Group

4 weeks 11 hours ago
Do you have a dial-peer defined on the GW that has session-target of sub-1?...

Chris Deren has commented on CCM Group

4 weeks 11 hours ago
Do you have the IP address of Sub2 defined as trusted IP in the voice gateway?...

Chris Deren has commented on Calls to invalid extension over an ICT reroute via the backup pstn.

1 month 4 days ago
How is the Route List/Route group configured for the route to the other cluster...

Chris Deren has commented on English/Spanish scripts option for over 25 scripts.

1 month 5 days ago
When script variable is set as parameter then it can be overwritten at the...

Chris Deren has commented on UCCE maintenance release 9.0(1) - how to upgrade to 9.0(4)

1 month 5 days ago
not sure what else you are looking for, you follow the above steps and then...

Chris Deren has commented on E1 channel mismatch on MGCP Router with CUCM

1 month 5 days ago
This command has never been very reliable, so I would not look at it.Since this...

Chris Deren has commented on SIP LOOP 480 temporarily not available

1 month 5 days ago
What is the SBC, is it Cisco CUBE?It looks to me that the SBC is not providing...

Bio

Technical Lead
CCIE-Voice #17137.

I have been working with Cisco Unified Communications technologies since 2002. I started my career on CallManager 3.3 and limited applications that came with it back then to see the technology evolve to broad range of Unified Communications applications, messaging, presence, SIP trunking, collaboration, etc. My other area of focus is contact center ranging from small UCCX deployments to large enterprise UCCE accounts. My daily job includes the full project life cycle from pre-sales, architecture and design, to implementation and support.

I started to regularly participate on Netpro in April 2005, and I have to admit I got kind of addicted to the forum. I find it most useful in finding design, implementation and support tricks and shortcuts that greatly help me in my daily activities.

My advice to anyone interested in Networking technologies is to read, research, study and enjoy these technologies as the material is infinite.








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    2015 IP Telephony





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    2014 IP Telephony, Unified Communications





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    2013 IP Telephony, Unified Communications, Contact Center





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    2011 Contact Center









Chris Deren's Stats

Points17889
Discussion started 130
Answers marked as Correct 1655
Endorsed 21
Content Rated 238