please confirm the DNS SRV records. Most softphones and ATA's have no real
knowledge of SRV recods, and hostnames just wont cut it.

On Mon, Mar 5, 2012 at 10:54 PM, S.K.- G <[email protected]> wrote:

> Dear Tony and All, ****
>
> We were able to register all our SIP softphones and ATA devices to SIPX
> through the SBC.. Out main issue is that we are still not able to register
> any of the Polycom phones through SBC . Please advise if you have any
> documentation or information on how to get this to work.****
>
> Any help is highly appreciated****
>
> ** **
>
> Regards****
>
> Saad****
>
> ** **
>
> *From:* Tony Graziano [mailto:[email protected]]
> *Sent:* Monday, March 05, 2012 11:57 AM
> *To:* Saad
> *Cc:* Discussion list for users of sipXecs software
> *Subject:* Re: Phone registration Plan****
>
> ** **
>
> ** **
>
> On Mon, Mar 5, 2012 at 11:38 AM, Saad <[email protected]> wrote:****
>
> Hello,****
>
> ** **
>
> We are experiencing a very annoying issue where all outbound calls are
> getting disconnected after 30 minutes. pressing Hold then Unhold will
> recover the audio path.****
>
> As per the sniffer we see when a call is created by SIPX (either initial
> or after pressing hold / Unhold), the SIP 200 Message is sent from the SBC
> to SIPX with the public IP of the SBC in the SDP packet. SIPX establishes
> the connection first and all is well.
>
> In the middle of a call, after 30 minutes, a RE-INVITE happens from the
> ITSP side of the connection. Since the packets are flowing in a different
> direction, the SIP 200 Message flows in the opposite direction, and the SBC
> attempts to connect to the SDP IP address in the packet, which is being
> identified as an internal IP address (Polycom Phone IP address).****
>
> ** **
>
> Tony Graziano has suggested to us previously to have all phones registered
> directly to the SBC instead of SIPX . We finally will receive a help from
> ACME  (SBC team) to help us on configuring a registration plan for the
> Polycom phones on the SBC.****
>
> ** **
>
> Incorrect. I've always stated the SBC should pass the connections through
> to sipx using the public DNS / SRV records pointing to the SBC. ****
>
>
> Kindly let me know :
> 1.       What configuration changes need to be done on the phones to
> achieve this requirement.
> 2.       Any changes required on the SIPX server side to make this
> registration work?
>
> Kind Regards
> Saad Khankan****
>
> ** **
>
>
>
> ****
>
> ** **
>
> --
> ~~~~~~~~~~~~~~~~~~
> Tony Graziano, Manager
> Telephone: 434.984.8430
> sip: [email protected]
> Fax: 434.465.6833
> ~~~~~~~~~~~~~~~~~~
> Linked-In Profile:
> http://www.linkedin.com/pub/tony-graziano/14/4a6/7a4
> Ask about our Internet Fax services!
> ~~~~~~~~~~~~~~~~~~****
>
> LAN/Telephony/Security and Control Systems Helpdesk:****
>
> Telephone: 434.984.8426****
>
> sip: [email protected]****
>
> ** **
>
> Helpdesk Customers: http://myhelp.myitdepartment.net****
>
> Blog: http://blog.myitdepartment.net****
>



-- 
~~~~~~~~~~~~~~~~~~
Tony Graziano, Manager
Telephone: 434.984.8430
sip: [email protected]
Fax: 434.465.6833
~~~~~~~~~~~~~~~~~~
Linked-In Profile:
http://www.linkedin.com/pub/tony-graziano/14/4a6/7a4
Ask about our Internet Fax services!
~~~~~~~~~~~~~~~~~~

-- 
LAN/Telephony/Security and Control Systems Helpdesk:
Telephone: 434.984.8426
sip: [email protected]

Helpdesk Customers: http://myhelp.myitdepartment.net
Blog: http://blog.myitdepartment.net
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