[cisco-voip] Cisco IP Communicator Issue

[Kim, Hyoun S]

That gives me a good place to start.  Since you guys think it’s a routing issue, do you think it’s because my IP phones are on an isolated network?  You can’t even ping the IP range that the phones use unless you’re on the CME router itself.

 

Hyoun Kim

Network Administrator I

Charter Media - East Division

640 Broadmor Blvd, Suite 80

Murfreesboro, TN 37129

 

Email: Hyoun.Kim at chartercom.com

Office: 615.217.6245

Fax: 615.217.6255

 

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Bill Talley
Sent: Wednesday, January 27, 2010 6:48 PM
To: Cristobal Priego
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Cisco IP Communicator Issue

 

I agree with those suggesting routing issues.  Sounds like the default gateway for your internal IP phones may be sending the the return rtp traffic back a different route.

Sent from my iPhone


On Jan 27, 2010, at 6:29 PM, Cristobal Priego <cristobalpriego at gmail.com> wrote:

	most of the times one way audio issues are related to routing problems than an issue with the CME, CCM or the phone.
	and its more common to have a one way audio issue when a vpn tunnel is involved. could you please check your routing table.
	what i'd check is the routing table or whatever you have on the vpn. it looks like the traffic coming from your office to your ipc is getting lost somewhere that's why they can hear you but you can't hear them

	2010/1/27 Steve G <smgustafson at gmail.com>

	make sure that your VPN knows about the phone subnet so that rtp knows how to get to the office phone.

	On Wed, Jan 27, 2010 at 3:07 PM, Kim, Hyoun S <Hyoun.Kim at chartercom.com> wrote:

		We have a Cisco CME/CUE setup in our office and I’m trying to work on a solution for those people who are on the road, but still need access to their local office phone.

		 

		I installed the Cisco IP Communicator and used the corporate VPN to allow connections back to our office.  On the CME, I created a new ephone and associated with the same ephone-dn that the user’s physical phone resides on.

		 

		I tested the following scenarios using the IP Communicator:

		1.       Placed a call from an external phone (like a cell phone) to the DN.  The phone rang & the  call was connected normally.

		2.       Placed a call to an external phone from the IP Communicator.  The call was connected normally.

		3.       Placed a call to another number internal to the CME.  Incoming audio (recipient could be heard), but outgoing audio (me speaking) did not work.

		 

		Is there a reason why I have problems with bullet #3?  The only thing I could think of is the fact that the actual physical Cisco phones are on their own private network, separate from the corporate network.  But even then, I could make/receive calls from outside phones.

		 

		 

		<image001.jpg>

		
________________________________


		Hyoun Kim • Network Administrator I – East Division

		640 Broadmor Blvd • Suite 80 • Murfreesboro, TN 37129

		' 615.217.6245 • ' 859.312.6941 • 7 615.217.6255 • * Hyoun.Kim at chartercom.com

		 

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