User`s manual

MP-1xx H.323 User’s Manual 1. Overview
Version 4.4 19 March 2005
• Works also without a Gatekeeper using the internal routing table with or without dialing plan
rules.
• Can fallback to internal routing table if there is no communication with the Gatekeepers.
• Supports the "TimeToLive" parameter. The MP-1xx Gateway sends Registration requests up
to "TimeToLive" expiration.
• Supports Info Request Response (IRR) messages for KeepAlive.
• Supports the mapping of destination (Alias) numbers in ACF message by the Gatekeeper.
• Supports Gatekeeper ID configuration (per Gatekeeper IP) for different Gatekeepers.
• Supports Lightweight Registration.
• Supports RAI (Resource Available Indication) messages, informing Gatekeeper that the
Gateway’s resources are below a threshold.
• Supports registration types: E.164, H323-ID and PartyNumber.
• Supports Lightweight Registration.
• Supports H.235 Security, Annex D Procedure 1 (authentication with a Gatekeeper).
1.3.3.2 Call Setup
• Can use the Normal Connect procedure.
• Can use the Fast Connect procedure with or without immediately opening H.245 channel.
• Can use Tunneling.
• Can negotiate a coder from a list of given coders for Normal or Fast Connect procedures.
• Can open an H.245 channel when using Fast Connect.
• Supports Early H.245 procedure, enabling opening of an H.245 channel before a Connect
message is received. Can be used for sending out-of-band Dual Tone Multi Frequency
(DTMF) digits before a call is answered.
• Can represent SourceNumber and DestinationNumber through: E.164, H323-ID and
PartyNumber.
• Can configure (in the manipulation tables) or map (according to H.225 V.4 Table 18) the
representation of the Src/Dest number types in H.323 messages.
• Supports collecting Digits from POTS (Plain Old Telephone Service) (for FXS gateways) or
from PBX/PSTN (for FXO gateways) using predefined digit map.
• Supports one or two stage dialing for network to PBX/PSTN calls, using MP-10x/FXO
Gateway.
• Supports answer supervision (FXO) using detection of either polarity reversal or human
voice.
• Supports disconnect supervision (FXO) using polarity reversal, current disconnect, detection
of Busy/Reorder tones or detection of silence.
• Supports configuration of calling number screening indication in H.225 Setup.
• Supports Pre-Grant ARQ, enabling the gateway to skip ARQ messages for incoming or
outgoing calls.
1.3.3.3 General
• The MP-1xx Gateways are identified by Country Code (0xB5) and Manufacturers Code
(0x28) in H.323 messages.
• Supports H.323 Annex D, T.38 real time fax.