[SIPForum-discussion] What are heart beat messages in VOIP viaSIPcalls? What is the standard? T

[Tim.Wong at cox.com]

Hi Sreekant,
There are actually two drafts that are related to SIP heartbeat or keep-alive messages. The main draft is: draft-ietf-sip-outbound-14 and the other is: draft-holmberg-sip-keep-00. 
 
-Tim
 
 

________________________________

From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of sreekant nair
Sent: Thursday, June 05, 2008 2:22 PM
To: Halit Sakca; Amit Keswani; Yuantao Zhang; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] What are heart beat messages in VOIP viaSIPcalls? What is the standard? T


Hi,

Some time back read that there was a draft being prepared to have a Request message called PING to do exactly this. Not sure if the draft/rfc is released yet. Could not find it on Google. 
Maybe this cam help, but until then - I guess the preferred choice is the OPTIONS message. 

Thanks
Sreekant Nair


----- Original Message ----
From: Halit Sakca <sakcahalit at hotmail.com>
To: Amit Keswani <amit.keswani at genband.com>; Yuantao Zhang <yuantao.zhang at ericsson.com>; discussion at sipforum.org
Sent: Thursday, June 5, 2008 8:54:13 AM
Subject: Re: [SIPForum-discussion] What are heart beat messages in VOIP via SIPcalls? What is the standard? T

Hi,
 
Yes heartbeat messages in SIP commonly used as OPTIONS and we need to get back 200 OK in a period, if thre is a timeout to get 200 OK then we can assume that sip element is out of servise.
 
By the way in TCP it is periodic ARP messages.

Selamlar,
Halit Sakca





________________________________

	From: amit.keswani at genband.com
	To: yuantao.zhang at ericsson.com; discussion at sipforum.org
	Date: Thu, 22 May 2008 12:47:37 +0530
	Subject: Re: [SIPForum-discussion] What are heart beat messages in VOIP via SIPcalls? What is the standard? Thanks
	
	

	Hi,

	 

	    I guess heartbeat messages in generic term are used to check the connectivity between 

	two elements and mostly it is send in OPTIONS. Like to check the connectivity of media server from

	UAC.

	 

	 

	Regards,

	Amit Keswani
	SMTS - System Test
	
	GENBAND Technologies
	C-42, Sector-58
	Noida-201303, INDIA
	office            +91.120.2588272
	mobile         +91.9891928745
	facsimile     +91.120.2588274
	amit.keswani at genband.com
	 

	
________________________________


	From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Yuantao Zhang
	Sent: Thursday, May 22, 2008 11:29 AM
	To: discussion at sipforum.org
	Subject: [SIPForum-discussion] What are heart beat messages in VOIP via SIPcalls? What is the standard? Thanks

	 

	What are heart beat messages in VOIP via SIP calls? What is the standard? Thanks
	

________________________________

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