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https://tools.ietf.org/html/rfc4028
RFC 4028 Session Timer April 2005 will describe basic operation in the case where both sides support the extension. A UAC starts by sending an INVITE. This includes a Supported header field with the option tag 'timer', indicating support for this extension.Cited by: 61
https://datatracker.ietf.org/doc/rfc4028/
Network Working Group S. Donovan Request for Comments: 4028 J. Rosenberg Category: Standards Track Cisco Systems April 2005 Session Timers in the Session Initiation Protocol (SIP) Status of This Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements.
https://www.rfc-editor.org/errata_search.php?rfc=4028
> UA1 does not support session timer, Make a call to UA2. Call-> stateful-proxy adds Session-Expires:100 header and forwards to UA2. UA2 > minimum session expires is 900. But in this case INVITE will not contain > "support: timer". According section 9, UAS can reject with 422 only if > there is a timer tag in supported header > > <Snip from RFC> >
https://docs.telcobridges.com/tbwiki/SIP_session_timers
SIP Session Timer Support . SIP provides a mechanism by which both user agents and proxies can determine whether a given SIP session is still active. This mechanism is referred to as a Session Timer and is described in RFC 4028 “Session Timers in SIP”. This specification defines a keep alive mechanism for SIP sessions.
https://www.unicoi.com/press_center/sip_5.1_natst.htm
Press Release: Fusion SIP 5.1 expands support for RFC 3581 and RFC 4018, encompassing NAT Traversal and Session Timers. Unicoi Systems continues to pursue the most valuable RFCs for developers as part of our continuous improvement program. Fusion SIP is part of a complete line of embedded protocols and reference designs from Unicoi Systems.
https://www.pjsip.org/pjsip/docs/html/group__PJSIP__TIMER.htm
Update outgoing response to insert Session Timers headers and also signal Session Timers capability in Supported and/or Require headers. This function will only update outgoing response with status code 422 (Session Interval Too Small) or 2xx (final response).
https://www.heise.de/netze/rfc/rfcs/rfc4028.shtml
RFC 4028: Session Timers in the Session Initiation Protocol (SIP) Autor(en): J. Rosenberg, S. Donovan. This document defines an extension to the Session Initiation Protocol (SIP).
https://lists.cs.columbia.edu/pipermail/sip-implementors/2009-November/023856.html
The possible benefit is - if > UAS supports RFC 4028 and wants to apply session expiration procedures, it > would know the values of Min-SE which P1 and P2 support. > 2. P2 receives INVITE with Min-SE and Session-Expires headers (and remembers > it). > 3. UAS doesn't support RFC 4028, therefore doesn't insert the session > expiration headers in ...
https://community.cisco.com/t5/atas-gateways-and-accessories/limit-call-duration-or-support-rfc4028-in-spa112/td-p/3380241
Is there way to limit duration of hang calls in cisco SPA112 or support RFC 4028 (session timers), so hang calls will not break our continuous network tests? Labels: ATAs and Gateways and Accessories; I have this problem too. ... A consumer router may support a virtual private network (VPN) connection, but that's a far cry from the network and ...
https://www.cisco.com/c/en/us/td/docs/telepresence/infrastructure/articles/mcu_ip_vcr_ip_gw_sip_rfc_support_kb_84.html
RFC 4028 - Session timers in SIP RFC 4583 - Session Description Protocol (SDP) format for Binary Floor Control Protocol (BFCP) streams RFC 4573 - MIME Type Registration for RTP Payload Format for H.224 draft-levin-mmusic-xml-schema-media-control
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