UC320W - No audio heard on incoming calls

[jules.gaudreault]

Hello,

I'm still trying to properly setup my UC320W with a bunch of SPA504 phones. I believe I have almost everything working ofr the most part except for the fact when I call in, I get no sound on any of the phones. I am able to call out on these phones though but just get no sound on incoming calls. I'm sure I did have this working at one time but I can't figure out why/how this has changed. Any help would be appreciated. Thanks.

[wenyang]

Hi Jules,

You have SIP trunk or FXO when making inbound calls?

Regards,

Wendy

[jules.gaudreault]

I am using a SIP trunk for both incoming and outgoing.

[wenyang]

Hi Jules,

I suspect that there is networking issue so that the audio can't be passed through.

Please do a WAN TCP dump when you make an inbound call. Status-> Support Tools -> TCP Dump -> Interface WAN data. Please let me know what is UC320 WAN IP address.

Regards,

Wendy

[jules.gaudreault]

Hi Wendy,

I have attached a TCP dump. The IP address for the config utility is 192.168.1.200 and the other IP address which I believe is the WAN address is 192.168.1.103. Strangely enough, when using the TCP dump tool, the audio worked in incoming calls but when it is turned off, it doesn't work.

[wenyang]

Hi Jules,

The tcpdump somehow doesn't include a successful call. There are a couple of INVITE messages with authentication failure. You may want to contact small business support center to get help. So that the engineer can look into your configuration and get a successful TCP dump.

http://www.cisco.com/en/US/support/tsd_cisco_small_business_support_center_contacts.html

Best regards,

Wendy