User guide

1 Introduction

Aastra Mobile Client (AMC) solution is designed to work with all Aastra communications platforms. The

Aastra Mobile Client 3 version (AMC 3) requires the AMC Controller (AMCC). The AMC Controller

connects the AMC 3 to the Aastra communications platforms via SIP user interface. AMC Controller

supports the following features & functions:

• Mobile integration over SIP

• Dual-Mode (WLAN / mobile network)

• Directory Search / LDAP

• Least Cost Routing

• trueCLIP

• Mobile Presence & Instant messaging (IM)

• Encrypted VoIP (SRTP)

This document provides a description of the AMC 3 in connection with the AMC Controller for mobile

SIP integration with dual mode and Unified Communications features.

It includes a description of the system components and functions, different configurations and the

applicable management functions.

2 Overview Description AMC 3 & AMC Controller 2.0

The AMC 3 and AMC Controller 2.0 solution is a client-server based solution offering mobile phone

integration over SIP as well as seamless call continuity when the user moves back and forth between

cellular (2G/3G) and WLAN networks.

The SIP-based AMC 3 installed on a Smartphone - supporting connections to both cellular and WLAN

(802.11) networks in parallel - interacts with the communications system through the AMCC. The AMC

3 and the AMCC jointly manage the call and perform the handover seamlessly between the alternative

networks. Handover from GSM to WLAN is initiated automatically but is transparent for the user. The

handover from WLAN to GSM has to be done manually on the iPhone. 1

The AMC 3 runs on Black Berry 6.0 - 7.0, iPhones (Apple) higher than 3GS & Android 2.3 and 4.x.

Please see Supported Device Portal AMC on Aastra InfoChannel in order to get more information about

recommended mobile phone OS types and versions. Devices not listed there are generally not

supported.

Once the AMC 3 users are configured via the AMC portal & the AMCC management GUI, the AMCC

manages the user registration on the Aastra communications system and keeps track of the users’

presence on the network. Together with the AMC 3 the AMCC also manages central and

communications system related parts of the handover activity. The call setup to and from the Public

Land Mobile Network (PLMN) is done through the communications system where the public trunk

interface is converted to and from a SIP network interface to the AMCC. The AMCC also converts

DTMF tones received (requests for telephony services generated from the AMC 3, e.g. on only-2G-

connection) to SIP info messages that can be handled by the communications system. The AMCC

iPhone does not support automatic handover from WLAN to GSM, only from GSM to WLAN.