We received this from Level 3 last week. If they've done it already, then they are early!
" Dear Level 3 Customer, Level 3 will be upgrading gateway media servers and initial feasibility tests have shown that Asterisk software versions prior to 1.4 are not compatible with RFC specifications. The issue relates specifically to Asterisk's support for Dual-Tone Multi-Frequency (DTMF) named events (RFC 2833). Asterisk software prior to version 1.4 does not send "duration" in the actual DTMF Event packet. This violation of RFC 2833, as described in sections 3.5 (Payload Format) and 3.6 (Sending Event Packets), causes call failures on Level 3's network. However, this is a known issue which has been resolved by Asterisk beginning with their code release 1.4. For customers using earlier version of Asterisk, you will need to upgrade your Asterisk software to version 1.4 or higher by August 1, 2007 in order to prevent disruptions to your service. Failure to upgrade your network will result in DTMF detection failures beginning August 1, 2007, may negatively impact your calling traffic over the Level 3 network. In-band DTMF detection will continue to function properly on Level 3's network and can be used as an alternative to the software upgrade. Level 3 provides this notification more than 45 days in advance of the network GCR so that customers have adequate time to upgrade their software. If you have questions or concerns about this letter please contact the Level 3 Service Management Center at 1-877-453-8353 option 4 followed by option 3. We appreciate your business and apologize for any inconvenience this may cause you." Douglas. > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:asterisk-biz- > [EMAIL PROTECTED] On Behalf Of Peter Beckman > Sent: Friday, July 20, 2007 12:30 PM > To: [email protected] > Subject: [asterisk-biz] Sprint via L3 problems: no DTMF > > Folks -- > > I'm troubleshooting a strange issue. > > Asterisk 1.2.13 -> Vitelity -> L3 -> Sprint Mobile Phone 703-867 > > DTMF fails from the Sprint Mobile Phone back to my Asterisk box. > > When Vitelity routes that call out a different carrier, DTMF works fine. > > Can those of you with access to L3 termination and a Sprint Mobile test > DTMF back to asterisk? > > Beckman > ------------------------------------------------------------------------ -- > - > Peter Beckman Internet > Guy > [EMAIL PROTECTED] > http://www.angryox.com/ > ------------------------------------------------------------------------ -- > - > ** PLEASE NOTE PurpleCow.com IS NOW AngryOx.com DO NOT USE PurpleCow.com > ** > ** PurpleCow.com is now owned by City Auto Credit LLC as of May 23, 2007 > ** > ------------------------------------------------------------------------ -- > - > > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-biz mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-biz _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-biz mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-biz
