Googling for overlap signaling leads you to http://tools.ietf.org/html/rfc3578 and other discussions.
Cary. On Jul 15, 2013, at 9:51 AM, Joel Gerber wrote: > That's an awesome question. To be honest; I'm not sure of when it's even a > good idea in a TDM network. The time you save in routing lookups is > negligible in an ISUP network. Maybe during the days when MF was king it made > more sense? > > Joel Gerber > Network Specialist > Network Operations > Eastlink > E: [email protected] T: 519.786.1241 > -----Original Message----- > From: SIP Learner [mailto:[email protected]] > Sent: July-15-13 12:49 PM > To: sip-implementors > Subject: [Sip-implementors] Overlap signaling in a native SIP network > > Dear All! > > > In PSTN networks, it's beneficial to try to establish a connection between > the caller and the callee before the full phone number digits are collected. > But SIP works over the connectionless IP network, is there any benefit to use > overlap signalling in a native SIP network? > > > Are there any official standards or technical materials that documents > overlap signalling in a native SIP network? > > > Thank you very much! > > > > > ZHANG > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
