[SIPForum-discussion] without registering a IP phone , Can we make a call?

[anitha rosy]

 Hi Michel,
 
  From my experience, you will be able to make any calls from your 1st phone to your second phone.
 
I am not sure if you are using a SIP SOFT PHONE.
 
Incase of sip hard phones ,if you are not able to type in the complete SIP URL, your call will not work.
 
If your Registrar sever (Which is also acting as a DNS server or a separate DNS Server) is ENUM capable, it may work out to resolve the IP Address and your call should succeed.
 

Thanks and Regards,
Anitha

________________________________
From: Rajib Deka <rajibdk at gmail.com>
To: "discussion at sipforum.org" <discussion at sipforum.org> 
Sent: Friday, 30 November 2012 11:10 AM
Subject: Re: [SIPForum-discussion] without registering a IP phone , Can we make a call?


It might be possible if the IP phone allows you to manually enter the URI of the end point you are dialing. I have an experience of doing this with a soft IP phone, unfortunately I forgot the name of the phone. Most of the proxies have settings to enable guest calls. 

-Rajib

On Mon, Nov 26, 2012 at 1:26 PM, Srinivas Rao <dadisrao at gmail.com> wrote:

if you have a static ip you can make a call with out any sip server 
>
>
>regards
>dsrao
>
>
>
>On Tue, Nov 13, 2012 at 10:09 AM, Rudra Kant Kanth <rudra.k1 at gmail.com> wrote:
>
>Hi Thomas, Mike...
>>
>>For any phone (in our case, SIP phone) to speak out to an IP phone, this phone has to be registered somewhere. I am not 100% clear in drawing the picture what would happen if a VoIP gateway in placed in b/w. The job of Voice Gateway would be to provide some initial greetings or routing the call to an IP (which is our IP phone here, the IP of whose we know already); but; if someone wants to speak with the user on this phone, then, I understand that the phone has to be registered to something. This can be any gatekeeper, but, there has to be a gatekeeper which can pass the signalling onto this phone for the phone to ring and eventually answer.
>>For any two phones across anywhere to speak with each other (be it a SIP or an IP phone), these phones must be registered.. Let me know if I am incorrect...
>>
>>Regards,
>>Rudra
>>
>>
>>
>>
>>On Wed, Oct 10, 2012 at 8:20 PM, Thomas Trung <trungdo at patton.com> wrote:
>>
>>Hi Michael,
>>>
>>>
>>>The answer is no if you are using IP PHOne.
>>>
>>>
>>>Yes, if you are using VOIP Gateway. Some of kind VoIP gateway can be support sip peer-to-peer like sip trunking so you can make the call from the phone connected to the first voip gateway to the another phone connected to the second voip gateway.
>>>
>>>
>>>Regarding
>>>
>>>
>>>Thomas Trung
>>>
>>>From: Michael Scofield <amit.chhikara at hotmail.com>
>>>Date: Tuesday, October 9, 2012 12:29 AM
>>>To: "discussion at sipforum.org" <discussion at sipforum.org>
>>>Subject: [SIPForum-discussion] without registering a IP phone , Can we make a call?
>>>
>>>
>>>
>>>Hi All, 
>>>
>>>
>>>one scenerio:
>>>
>>>
>>>if one phone is registered to registrar server, 2nd phone is not registered but 1st phone knows the IP address of 2nd IP Phone
>>> in that case we can make call between 2 IP Phones or not??
>>>
>>>
>>>Please tell me if i am not clear.
>>>
>>>
>>>Thanks in Advance.
>>>
>>>
>>>
>>>
>>>Regards,
>>>Michael_______________________________________________ This is the SIP Forum discussion mailing list TO UNSUBSCRIBE, or edit your delivery options, please visit http://sipforum.org/mailman/listinfo/discussion Post to the list at discussion at sipforum.org 
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>>>
>>
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>
>_______________________________________________
>This is the SIP Forum discussion mailing list
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-- 
Rajib Deka
Software Engineer
Servion Global Solution
Chennai, India

Mobile No: + 91 91767 80669


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