Version 2.6.3 - AudioCodes MP-20 Series Release Notes

Release Notes
2

Version 2.6.3

2.1 What's New in Version 2.6.3
Version 2.6.3 is the first Version for MP-203 Rev B models. MP-203 features two FXS ports and
one FXO port.
MP-203 FXO feature: The FXO interface enables users to connect a regular PSTN line to the MP-
203 and use it as a "second line" for incoming and outgoing calls. When making outgoing calls, the
user hears the VoIP dial tone by default. To access the PSTN, the user needs to dial a user-
defined DTMF key or sequence (using the "PSTN Access Code" parameter), for example, the key
'9' (which is the default access code). For all incoming calls (either from the VoIP or PSTN side),
the local phone will ring. In addition, the MP-203 user can receive waiting calls and perform call
transfer and three-way conferencing between VoIP and PSTN calls (for more information, refer to
the Addendum of the MP-20x User's Manual).
Version 2.6.3 supports both MP-20x Rev A and Rev B models. The following products are
supported:
•
MP-202/2FXS/SIP
•
MP-201B/1FXS/SIP
•
MP-202B/2FXS/SIP
•
MP-203B/2FXS/1FXO/SIP
•
MP-204B/4FXS/SIP
Warning:
SIP proxy redundancy support: The Redundant Proxy feature enables the user to configure a
backup SIP proxy. Once this feature is enabled, MP-20x identifies cases where the primary proxy
does not respond to SIP signaling messages. In such a scenario, MP-20x registers to the
redundant proxy, and seamlessly continues normal functionality without the user noticing any
connectivity failure (i.e., non-traffic affecting).
Support for improved 'MGCP Like' digit map mechanism, as defined in the MGCP RFC 3435
Section 2.1.5. This new mechanism allows definition of more complex digit maps.
Re-answer (call regret) support. This feature enables the user to on-hook the phone during a call,
and then off-hook the phone again (i.e., regret on-hooking the call) within a user-defined timeout
(defined by the "Re-Answer Timeout" parameter). After the user picks up the phone receiver, the
previous call (conversion) can continue (i.e., the call is not disconnected). This feature is applicable
only when MP-20x is the called side (not the calling side).
Support for Do Not Disturb (DND) mode. The MP-202 model supports the DND feature according
to RFC 3326 and RFC 3261 Section 27.
Version 2.6.3
Do not download an MP-20x Rev B firmware to an MP-202 Rev A model and vice
versa. Typically, a protection mechanism prevents this and notifies the user of a
firmware mismatch. However, in certain cases (e.g. when downloading MP-20x
Rev A firmware to MP-20x Rev B models with 4-MB flash), this action can result in
an inoperable unit.
9
2. Version 2.6.3
November 2008