Using Call Park with E&M Tie Trk on Opt 61C

[EK Engels]

My customer wants to be able to retrieve a Parked Call by using a 3rd party system connected to the Option 61C via E&M Tie Trunks. Once the tie trunk is accessed and hear dial tone, we are dialing the SPRE code (1) plus 72 and the 4 digit park code. But all we get is a fast busy after the 172. The Tie Trunks work to call any directory number in the system but not retrieve a parked call. I have played with the NCOS and TGAR settings on the tie trunks but no change.
All the documents I have found state Tie Trunks work with Call Park but does not specify if they mean a call on an E&M Tie trunk ca be "Parked" or if the parked call can be picked up using a E&M trunk as the access.
Is anyone doing this?

 

[Firebird Scrambler]

I have attached the guide that you need to refer with and the Call Park feature mentioned below in bold says "Trunks without disconnect supervision cannot be parked"

I always thought that only a Meridian Phone or console could access it. It's not a feature that is used on those customers I had in the past.

Feature description

Call Park (CPRK) places a call in a parked state, similar to hold, where it can be retrieved by
any attendant console or telephone. A parked call must have an access ID, also known as a
Park DN. This is done by parking the call on a System Park DN or on any telephone Directory
Number (DN) in the system. A parked call does not occupy a DN, nor is there a lamp to indicate
its presence.

Up to 50 System Park DNs are available per customer. There is no limit to the number of DNs
that can be used as a Call Park access ID. However, only one call at a time can be parked
against any particular telephone or System Park DN.
In addition, the system can offer a default access ID. If System Call Park is defined, the default
access ID for attendant consoles and Meridian Digital Telephones is the next available System
Park DN.

If System Park DNs are not defined for the customer, the default access ID is the DN of the
telephone where the call was parked. An attendant must press the Park key and enter a DN
if System Park DNs are not defined.

Park the call, then page the person called. The person called then picks up the call directly or
through the attendant. Call Park also enables the telephone that originally receives the call to
Features and Services Fundamentals — Book 2 of 6 (C) November 2010 195
park it so that another telephone can retrieve it later. The telephone placing the call in Park is
free to make or answer other calls.

Calls can be parked from telephones or attendant consoles with the Park key/lamp pair or
Special Prefix (SPRE) code. Parked calls not retrieved within a specified time (30 to 240
seconds) are recalled to the telephone that parked it. Music for parked calls can be provided
if Music (MUS) package 44 is installed.

If a call is parked on a System Park DN, it is recalled to the attendant who parked it if the parking
attendant is idle. If the parking attendant is busy, the call is presented to any idle attendant.
If a call is parked on a telephone DN, the recall is placed in the attendant queue and presented
to any available attendant. In all cases, parked calls recalled to the attendant appear on the
Recall Incoming Call Identification (ICI) key, if defined.

The Park DN of the most recently parked call can be displayed again on Meridian 1 proprietary
telephones equipped with displays, a Park key, and a Display key. This is done by pressing
the Display key, then the Park key. The attendant can display the last call parked by pressing
the Park key when no loop key is active.

Operating parameters

Call Park is not available for calls on Dial Intercom keys or for calls on analog (500/2500 type)
telephones designated as Dial Intercom telephones.

Call Park is not permitted when Privacy Release or Conference is active.
Calls parked from Meridian 1 proprietary telephones and analog (500/2500 type) telephones
are recalled to the telephone that parked the call.

When a Multiple Appearance Single Call telephone mix (the same DN appears on Meridian 1
proprietary telephones, and single-line telephones) is parked, other appearances are not
automatically bridged to the parked call when going off hook. The call can be retrieved by
another Multiple Appearance DN (MADN) telephone only by dialing the Call Park retrieval code
and the DN.

Remote access (for example, Centralized Attendant Service or Direct Inward System Access)
for parked parties is not permitted.

Private lines, attendant DNs, Automatic Call Distribution (ACD), and Direct Inward System
Access (DISA) DNs are not valid park numbers.

Trunks without disconnect supervision cannot be parked.

Parked calls are not retained during initialization or SYSLOAD.

Parked calls cannot be accessed with the Automatic Call Distribution (ACD) In-calls key. If
parked access from Automatic Call Distribution (ACD) positions is required, a DN key must be
provided.

A parked call recall cannot be placed on hold by the attendant.

A call transferred to the attendant by the Conference key on a Meridian 1 proprietary telephone
cannot be parked by the attendant. A call transferred to the attendant by the Transfer key on
a Meridian 1 proprietary telephone can be parked by the attendant.

Firebird Scrambler

Nortel & Avaya Meridian 1 / Succession & BCM / Norstar Programmer

Website =

http://somertel.com

linkedin

 

[biv343]

It's been a long time, but I'm pretty sure I did this in the past just by calling the park slot number from the far end. That was over a PRI, not E&M tie so that may have something to do with it.

 

[Firebird Scrambler]

I agree as it doesn't mention E&M circuits

Feature interactions

AC15 Recall: Transfer from Meridian 1
If Party Z parks the call initiated by Party X (an external caller), then the AC15 Recall: Transfer
cannot be used to call Party Y. Party Z can neither park, selectively, one member of a split trunk
nor park a whole split trunk. This avoids a recall to an attendant on the recall originating node
that would not be able to send a recall to toggle from one party to another.

AC15 Recall: Transfer from Norstar
Remote access to call park from AC15 TIE trunks is not permitted. It is not possible to park an
AC15 trunk if it has a call on hold. When an AC15 trunk is parked, it is not allowed to initiate a
consultation call.

Access Restrictions

A call can be parked on any DN, regardless of its Class of Service. Access to a parked call is
governed by the same Class of Service limitations for normal trunk-to-telephone call
processing. Table 54: Accessing telephone Class of Service on page 197 details the
limitations. These limitations can be overridden with the Authorization Code.

Firebird Scrambler

Nortel & Avaya Meridian 1 / Succession & BCM / Norstar Programmer

Website =

http://somertel.com

linkedin

 

[EK Engels]

Thanks for the replies. That covers the same stuff I came up with when I researched it. I do have a question though, what is a AC15 trunk? Can't say I've heard that term before. But I'm going to assume access via a tie trunk can not be used the RETRIRVE a parked call.
EK Engels

 

[Firebird Scrambler]

In the UK, we used to use AC15 as analogue private trunks between switchboards. It's just like the E&M and used 4 wires in total for transmit and receive. Does your other system support AC15?.

Firebird Scrambler

Nortel & Avaya Meridian 1 / Succession & BCM / Norstar Programmer

Website =

http://somertel.com

linkedin