[cisco-voip] Cisco Mobile for iPhone with AnyConnect VPN

[Brian Schultz]

There doesn't appear to be.  Everything in the UC environment is using IP
addresses, DNS isn't being used.

In the packet capture, I see an INVITE from the CUCM to the Cisco Mobile for
iPhone client.  Then the client sends an ACK and the next message is a 404
Not Found from the client to CUCM.  I am assuming that this message is the
cause for the phone not ringing.

Brian


On Thu, May 5, 2011 at 1:32 PM, Chris Ward (chrward) <chrward at cisco.com>wrote:

> 404 in the IP phone space can sometimes means a DNS resolution failure. Are
> there any hostnames in the configs that it might be having trouble
> resolving? Any clue from the packet capture?
>
>
>
> +Chris
>
> Hosted Collaboration Solution TME
>
>
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Brian Schultz
> *Sent:* Thursday, May 05, 2011 2:26 PM
> *To:* Cisco-voip
> *Subject:* [cisco-voip] Cisco Mobile for iPhone with AnyConnect VPN
>
>
>
> I am working in an environment with an ASA5520 8.4(1) with AnyConnect
> Essentials and AnyConnect for Mobile license.  On the inside, we have CUCM
> 8.5(1).  When using IP Communicator soft phone running SIP protocol or Cisco
> Mobile 8.1.1 for iPhone client on the internal wireless, everything works
> fine.
>
> When you connect the same client from the outside world using AnyConnect
> VPN or IPSec VPN, the client registers to CUCM properly and calls initiated
> outbound from either device work properly.  However, inbound calls to either
> device never ring the phone.  I did a packet capture on the ASA and see 6
> total messages in both direction so I know two way communication is
> present.  One of the messages is a *404 Not Found* error, which doesn't
> seem to tell me much.  If I reconfigure the IP Communicator to use SCCP and
> connect via VPN, it works fine.  But the problem always occurs when SIP
> protocol is used.
>
> Since the calls work fine on the inside of the network, this doesn't appear
> to be a CUCM problem.  The only variable is VPN through the ASA using SIP
> protocol.  I have tried to disable SIP inspection on the ASA, but that broke
> all calls from those devices.
>
> Is anyone successfully using the Cisco Mobile for iPhone client connected
> via a VPN and receiving inbound calls?
>
> Thanks,
> Brian
>
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