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AudioCodes MP-20 Series Release Notes

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MP-20x Telephone Adapter
Release Notes
Version 2.6.3
Document #: 50511

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Summary of Contents for AudioCodes MP-20 Series

  • Page 1 MP-20x Telephone Adapter Release Notes Version 2.6.3 Document #: 50511...

  • Page 3: Table Of Contents

    Release Notes Contents Table of Contents   Introduction .......................... 7   Version 2.6.3 ........................9     2.1  What’s New in Version 2.6.3 ...................... 9  2.2  Resolved Constraints in Version 2.6.3 ..................11  2.3  Known Limitations in Version 2.6.3 ..................12 ...

  • Page 4: List Of Tables

    MP-20x List of Tables   Table 2-1: MP-20x Software Specifications........................ 10 Release Notes Document #: LTRT-50511...

  • Page 5: Customer Support

    Information contained in this document is believed to be accurate and reliable at the time of printing. However, due to ongoing product improvements and revisions, AudioCodes cannot guarantee accuracy of printed material after the Date Published nor can it accept responsibility for errors or omissions. Updates to...

  • Page 6: Related Documentation

    MP-20x Related Documentation Document Title Document Number MP-20x Telephone Adapter Quick Installation Guide LTRT-504xx (where xx refers to the document version) MP-20x Telephone Adapter User's Manual LTRT-506xx Release Notes Document #: LTRT-50511...

  • Page 7: Introduction

    MP-20x is suitable for users who wish to retain their PSTN line as a second line in addition to the VoIP line. Utilizing AudioCodes’ VoIPerfect™ core architecture, and gaining from its accumulated experience in providing IP telephony solutions, the MP-20x series combines superior voice quality and state-of-the-art features for end users, such as T.38 Fax Relay and G.168-2004-compliant Echo Cancellation.
  • Page 8 MP-20x Reader's Notes Release Notes Document #: LTRT-50511...

  • Page 9: Version 2.6.3

    Release Notes 2. Version 2.6.3 Version 2.6.3 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”...
  • Page 10 MP-20x The MP-20x software specifications are summarized in the following table: Table 2-1: MP-20x Software Specifications Feature Details SIP - RFC 3261, RFC 2327 (SDP) VoIP Signaling Protocols IPv4, TCP, UDP, ICMP, ARP,TLS (SIP Over TLS) Data Protocols PPPoE (RFC 2516) L2TP (RFC 2661) PPTP (RFC 2637) DNS, Dynamic DNS...

  • Page 11: Resolved Constraints In Version 2.6.3

    Release Notes 2. Version 2.6.3 Feature Details In-band: Telephony Signaling DTMF: Detection and Generation, TIA464B Caller ID: Telcordia, ETSI, NTT - Type I, Telcordia Type II Call Progress Tones Out-of-band: FXS Loop-start Signaling On/Off Hook, Flash Hook Resolved Constraints in Version 2.6.3 The following bugs were resolved in Version 2.6.3: Three-way conferencing with local mixing is now supported on MP-204 Rev B models.

  • Page 12: Known Limitations In Version 2.6.3

    MP-20x Known Limitations in Version 2.6.3 Version 2.6.3 includes the following known limitations: MP-203B/2FXS/1FXO includes the following known limitations: • The first configured VoIP codec is also used internally for calls between the local phone and the PSTN. If a codec other than G.711 is configured as the first codec, then voice quality degradation occurs in PSTN calls.

  • Page 13: Previous Version 2.6.2

    Release Notes 3. Previous Version 2.6.2 Previous Version 2.6.2 What’s New in Version 2.6.2 Version 2.6.2 is the first General Availability (GA) Version of MP-20x Rev B and is based on Version 2.6.1. The following three MP-20x Rev B models are supported in this version: •...
  • Page 14 MP-20x outgoing call. A silence period of about three seconds occurs after pressing the ‘Flash’ key during a conversation (normally, the user presses ‘Flash’ + ’1’, ‘Flash’ + ’2’, or ‘Flash’ + ’3’). This limitation does not occur when in ”Flash only” key sequence mode. QoS traffic shaping: Enabling ‘TCP Serialization’...

  • Page 15: Previous Version 2.6.1

    Release Notes 4. Previous Version 2.6.1 Previous Version 2.6.1 What’s New in Version 2.6.1 The following new features are supported in Version 2.6.1: The MP-202 now supports configuration file encryption. Encrypted files include the extension .cfx (instead of .cfg) or .inx (instead of .ini). The MP-202 automatically identifies the .cfx or .inx extensions and tries to decrypt the file.

  • Page 16: Resolved Constraints In Version 2.6.1

    MP-20x • FaxModemJitter: Fax Relay Jitter Buffer configuration. ♦ 0 = Adaptive Jitter Buffer. The AC49x device sets the Jitter Buffer size automatically and then adapts it according to network conditions. ♦ 1-511 = Fixed Jitter Buffer size (in msec). When configuring the key sequence style to "Send Flash Hook via SIP", the user can modify the INFO message that is sent upon Flash.

  • Page 17: Known Limitations In Version 2.6.1

    Release Notes 4. Previous Version 2.6.1 Known Limitations in Version 2.6.1 Version 2.6.1 includes the following known limitations: Faxes can be sent between the two local lines only if the selected fax transport mode is Transparent (in G.711). The Web interface is not automatically refreshed during the firmware upgrade process. After the dial tone timeout has expired (and a fast-busy tone is played), the user can still make an outgoing call.
  • Page 18 MP-20x Reader’s Notes Release Notes Document #: LTRT-50511...

  • Page 19: Previous Version 2.6.0

    Release Notes 5. Previous Version 2.6.0 Previous Version 2.6.0 What’s New in Version 2.6.0 The following new features are supported in Version 2.6.0: The MP-202 now supports SIP over TLS. TLS is a security mechanism that operates on top of TCP enabling SIP entities to send and receive data in a secure and authenticated manner.

  • Page 20: Resolved Constraints In Version 2.6.0

    MP-20x A new configuration parameter – “Connect on 180” has been defined. When this parameter is enabled, media is connected upon receipt of 180, 183 or 200 messages. When the parameter is NOT enabled, media is connected upon receipt of 183 and 200 messages only. MWI notification is NOT generated if there is an ongoing call.
  • Page 21 Release Notes 5. Previous Version 2.6.0 OPTIONS Keep-Alive feature – To ensure this feature is fully functional, the remote side must send any message, including the “501 Not implemented” message. Periodic checking of configuration file - enabling or disabling this feature requires reboot. SIP NOTIFY with a “check-sync”...
  • Page 22 MP-20x Telephone Adapter Release Notes Version 2.6.3 www.audiocodes.com...

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