DTMF (dialing digits) and IVR problems in Asterisk with SPA-3102 and PAP-2 devices Imprimer

We had calls going through SPA-3102 and PAP-2 devices where the user couldn't get his dialed digits recognized by both our IVR or other external IVRs. Obviously, this occured both on incoming and outgoing calls. The following changes solved our problems;

In FreePBX, Extensions, set your PAP-2 and SPA-3102 extensions to:

dtmfmode : INFO (was previously set to rfc2833)

In the PAP-2, admin login, advanced settings, in Line 1 and Line 2, set:

DTMF Tx Method: INFO (was previously set to rfc2833)

Silence Supp Enable: NO

In the SPA-3102, admin login, advanced settings, voice in Line 1 and PSTN Line, set:

DTMF Tx Method: INFO (was previously set to rfc2833)

DTMF Tx Mode: NORMAL

Silence Supp Enable: NO

It seems that only INFO works reliably between Asterisk and PAP-2/SPA-3102 devices. Asterisk uses rfc2833 for DTMF by default.

Note that Silence Supp Enable: YES migth work but it may also cause problems on PSTN lines. We haven't tested with Silence Supp Enable: YES due to prior problems with Silence Supp Enable: YES.

 

 

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Mis à jour / Last updated ( samedi, 15 décembre 2007 20:05 )