VoIP Extensions

[3.05] An error is corrected that could cause calls dialed from a 3rd-party SIP telephone to output double-digits on CO lines if the SIP telephone had audio cut-through to the outside line prior to dialing. This could happen, for example, if the user dialed 9, listened for outside dial tone, and then dialed the rest of the number.

This double-digit dialing problem would only occur if the SIP telephone was dialing digits in-band or was using RFC2833 . The system would re-generate digits that were already presented to the outside line in-band.

Reference: None

[3.05] A problem is corrected which would cause the system's VoIP processes to crash if the G.723 Codec was selected in 1812: Codec Type for the active VoIP Profile. Note that G.723 only is only supported by some 3rd-party SIP telephones. It is not a valid Codec type for DSX IP keysets.

Reference: None

[3.05] In prior version 3 releases, a 3rd-party SIP telephone could not negotiate past the first Codec in the 1812: Codec Type list. This is corrected.

Reference: None

[3.05] The system forces third-party SIP telephones to reregister every 180 seconds. This minimizes the possibility that third-party SIP telephones will deregister and go out of service.

Reference: None