Installation guide

Dial Plan Configuration – Integrating Lync Clients
Acano solution: Deployment Guide R1.2 76-1006-06-K
Page 40
6.5 Integrating Acano Clients with SIP and Lync Clients
Refer to the LDAP Configuration and Web Admin Interface Settings for XMPP sections of this
guide for instructions about configuring your Acano solution to use the Acano clients.
If you are using the same AD configuration to create both your Lync accounts and Acano clients,
problems may occur if a user tries to call a Lync client when using the Acano solution as a
gateway because the user may end up calling your Acano XMPP client. The Acano
Configuration > Incoming Calls page has a table of rules (Call Matching section) to prevent
this.
For example, assume you have an account [e-mail] on the Acano solution. I also
have a [e-mail] account on my Lync Front End Server. If a call arrives at the
Acano solution and no Call Matching rules are configured, the Acano solution will ignore the
domain and the call will go to the Acano solution’s [e-mail] account. In other words,
dialing fred@xxxx will ignore xxxx and see if there is a user “fred” locally.
This is problematic because a user trying to call the Lync address [e-mail] using
the Acano solution as a gateway will end up in a call with the Acano XMPP client logged in as
[e-mail]. If the same AD has been used to create both the Acano solution’s and
Lync’s user accounts, this will be a common problem.
The solution is to configure the Incoming Calls page with the Domain Name field set to
something distinct from the domain that the Lync Front End Server uses. In the example above,
a sensible choice for the Domain Name field would be example.com. Then, a call to
[e-mail] will reach the Acano client but a call to [e-mail] or
fred@xxxx will not. Instead, if the Call Forwarding section is set up, the Acano solution forwards
the call on.
6.6 Lync Edge Server Integration
6.6.1 Lync Edge Call Flow
To establish a call from the Acano Server to the Lync Edge server (see the figure below):
1. The Acano Call Bridge makes a “register” SIP call to the Lync Front End server.
2. The “register” is acknowledged.
3. The Call Bridge sends a “subscribe” to the Lync Front End server.