[Kamailio-Users] DTMF and Kamailio

Hello, I have the following topology: IPphones <-> IPBX-1 <-> <-> IPBX-A <-> IPphones IPphones <-> IPBX-2 <-> KAMAILIO <-> IPBX-B <-> IPphones ... IPphones <-> IPBX-N <-> IPBX-X <-> IPphones version: kamailio 1.4.1-notls (i386/linux) I experienced problems regarding DTMF digits transport. DTMF is transported through RTP data and it is not recognized at the end. Does anyone could recommend me how to force the negotiation between Kamailio and IPBXs to be sure that IPphones and IPBXs will use another method to transport DTMF (like OOB SIP INFO or RFC2833) Many thanks, Simon -- -------------------------------------------------------------- Simon Muyal Suivi des Services aux Usagers (SSU) Services operations & support Réseau National de Télécommunications pour la Technologie, l'Enseignement et la Recherche Tel: +33 (0) 1 53 94 20 40 | GIP RENATER Fax: +33 (0) 1 53 94 20 41 | c/o ENSAM E-mail: muyal(a)renater.fr | 151 Boulevard de l'Hôpital http://www.renater.fr | 75013 PARIS --------------------------------------------------------------