Welcome to

16 October – 19 October 2023
Šibenik, Croatia

GSMA portal


Amadria Park Resort and Conference Centre

This large resort features what is the biggest and most modern conference centre in Croatia. Two big, modular conference halls are supplemented by numerous smaller spaces totalling over 5000 msq., mostly centred around the conference centre and the adjacent hotel.

Especially notable is the Mediterranean City, a purpose-built events space on the very edge of the Adriatic Sea, featuring premium spaces for networking, private meeting rooms and other types of events.

About WAS

The Wholesale Agreements and Solutions Group (WAS) is responsible for Operator-to-Operator and Operator-to-Hub interoperability (including Interworking and Roaming) to provide GSMA members with a consistent, reliable GSM service for members to offer their customers.

Key topics

The Wholesale Agreements and Solutions Group (WAS) develops roaming and interconnect agreement templates and wholesale charging principles.

Additionally, WAS supports GSMA programs with the development of roaming and interconnect agreement templates and wholesale charging principles that are unique to the needs of these efforts, as appropriate.

What the Wholesale Agreements and Solutions Group does?

Develops and maintains roaming and interconnect agreement templates, solutions and charging frameworks as listed below:

  • Supports new prioritised projects and study of impacts.
  • Dialogue with GSMA leadership and provides recommendations on all matters related to roaming and interconnect.
  • Continuous improvements of official documentation.


The four 4 stars hotels in the Amadria Park resort all feature different design styles with a modern yet classical touch, as well as stunning sea and park views. In addition to sand and pebble beaches along the coast, the resort has indoor and outdoor swimming pools, spas, fitness facilities and outdoor courts.

Infobip as your host has worked with the Amadria Park Resort hospitality team to secure preferential hotel rates for all WAS#18 attendees. Follow this link to secure your hotel stay at preferential rates


A variety of sponsorship opportunities ensures strong event presence and guarantees your brand is prominently visible to delegates throughout the venue.

Exhibition options include premium pre-built meeting rooms, a range of fabricated meeting rooms, exhibition booths, as well as catering and hospitality options.

For sponsorships and exhibition enquiries, contact us at [email protected].

Sponsorships and exhibition catalogue

Exhibition floorplan

Exhibition manual

Weekend planner

About Šibenik

Šibenik is a central Dalmatian city which has in recent times reinvented itself and has transitioned from an industrial hub to a rapidly-growing cultural, nautical and tourist hotspot, harnessing its traditions and favourable location, as well as natural beauty of its surroundings.

Rich history

Called the city of fortresses, its highlights are several well-preserved land and maritime fortresses, now transformed into cultural and event venues. The city itself bears traces of Venetian and Austrian rule over the centuries, reflecting the turbulent history of the region.

Despite that, is the only major city on the Croatian coast that doesn’t trace its beginnings to the Roman or Greek period. It was founded in the 11th century by Croatian king Krešimir, who held court there, and the city is sometimes referred to as the town of Krešimir.

Pristine nature

Šibenik is the gateway to two stunning national parks, the Krka river and the Kornati archipelago. In addition to its pristine nature, Krka river is also notable in the history of technology, with the first hydroelectric powerplant in Europe built in 1889 and still operating, making it one of the oldest in the world. It was put into operation a mere two days after the Niagara falls powerplant, and made Šibenik the first city in the world to have AC-powered street lighting.

The Kornati archipelago comprises over 140 islands, islets and reefs and is the densest archipelago in the Mediterranean. With no permanent settlements, the area was for centuries used for pasture and as a source for timber, and is today a preferred destination for sailing and adventure tourism.

Traditional delicacies

Along a wide variety of seafood, some of the delicacies of the region include the famed babić red wine variety, olive oil, sheep and goat cheeses and the famed dry-cured ham, pršut.

Travel and transport

Šibenik is located halfway between international airports in Split and Zadar, each less than 1 hour away by Croatia’s A1 motorway.

Infobip has partnered with ATI Meetings & Travel to arrange different transfers options for delegates landing at Split and Zadar international airports:

Shuttle bus

On Sunday 15th and Monday 16th October, a shuttle bus service will be in operation between Split and Zadar airports and Amadria Park Resort.

Shuttle buses will depart after scheduled flights’ landing times. Please note there can be up to a 1.5 hour wait between services.

On arrival, look for WAS#18 signage in the arrival halls where transfer staff will be waiting.

Thursday 19th October, the shuttle bus service will be available throughout the day from the Amadria Park Resort to Split and Zadar international airports.

Shuttle bus price per person, per way:
Split/Zadar Airport – Amadria Park Resort 55,00 €

To book a seat on the shuttle bus, please fill out this form.
Spaces on the shuttle bus will be allocated on a first come, first served basis, so we recommend booking in advance.

Private Transfers

To book you private transfer service from Split or Zadar airports, please send an email with your details and flight information to [email protected].
A driver will be waiting for you in the arrival hall with appropriate signage (name or company name).

Private transfer prices per vehicle, per way:

Mini Van:
Split airport – Amadria Park Resort 160,00 €
Zadar airport – Amadria Park Resort 180,00 €

Split airport – Amadria Park Resort 130,00 €
Zadar airport – Amadria Park Resort 150,00 €

All bookings and payments will be handled directly by our partner.

Visa info

Croatia is a member of the European Union and the Schengen area, and has no visa requirements for EU and most European countries.

For the most up to date information regarding visa requirements for your country, please visit the website of the Croatian Ministry of Foreign and European Affairs here.

The list of Croatian embassies and consulates is here.

Visa applications can be made online here. If you require a support letter for your visa application, please contact Infobip at [email protected].

Event Agenda

Pre-event Networking party by Infobip

Date: Sunday 15/10/2023

Time: 18:00 – 22:00

Location: Mediterranean City, Amadria Park Resort

Join us on this networking evening where delegates will be able to register ahead of the main opening of WAS#18 and pick up their delegates bags. There will be canapes, nice drinks and music.

Dress code: business casual. Please note that the event will take place on the outside square of the Mediterranean City, so make sure to have a jacket with you, just in case.

Event days

WAS#18 Registrations

  • Sunday 15th October:
  • 12:00 – 17:00 in Hotel Ivan lobby
  • 18:00 – 22:00 in Mediterranean City
  • Monday 16th & Tuesday 17th October:
  • from 08:00 o’clock in Convention Centre
  • Wednesday 18th October
  • from 09:00 o’clock in Convention Centre

Sponsors’ access for set-up

  • Sunday 15th October: 18:00 – 21:00
  • Monday 16th – Thursday 19th October:  from 08:00 o’clock

Booths and private meeting rooms opening times

  • Monday 16th – Wednesday 18th October:  09:00 – 18:00
  • Thursday 19th October: 09:00 – 17:00

Operator Bilateral Negotiation Rooms will be open as follows:

  • Monday 16th  to Wednesday 18th  October: 09:00 – 18:00
  • Thursday 19th October: 09:00 – 14:00

Plenary Hall Agenda

16-19 October 2023, Sibenik, Croatia hosted by Infobip

09:0010:30BCE Training – Charging Models and how to implement in WA.200Opening and Welcome, Interview on hot topics in region

Opening session including introductions, keynote speakers and Chair welcome and high level WAS work plan, purpose of the meeting.
5G – Are Robots the futureMember Gateway/Roaming Gateway Drop In Training
10:3011:15Networking BreakNetworking BreakNetworking BreakNetworking Break
11:1512:30BCE Training – How to get StartedQuality – Building your Business CaseOpen Gateway – Updates from early adoptersRAEX Functionality Drop In Training
12:3014:00LunchLunchLunchClose of Meeting
14:0015:30Member Gateway/Roaming Gateway Drop In TrainingVoLTE – Supporting customer needs when legacy services are no longer availableFuture of Messaging & Fraud impactsNetworking Rooms will close at 14:00
15:3016:15Networking BreakNetworking BreakNetworking Break
16:1517:30RAEX Functionality Drop In TrainingUpdates from WAS Subgroups – why should Operators take noteThe Present and the way to the Future

Voting on recent Change Requests

Feedback on Event & Future Planning

Main WAS#18
Party by Infobip

Date: Tuesday 17/10/2023

Time: 18:30 – 01:00

Location: St. Michael’s Fortress (Tvrđava sv. Mihovila), Šibenik

We are preparing a great party for all WAS#18 participants and Bippers in attendance! There will be amazing food, live entertainment and the venue is just breathtaking. This is a party you would not want to miss!

There will be organized transfers in place between the Amadria Convention Centre and the party venue starting from 18:15 o’clock. The service will be available in reverse until 01:00 o’clock.  

Dress code:

Please note that the venue is on top of a hill, (it is a fortress after all 😊), and from the transfer drop off point, you will need to walk up some stairs for 200 metres. Make sure you wear comfortable shoes; it will help with the dancing as well 😉 You can thank us later.

For delegates with mobility problems, a minivan shuttle service will be available up to the venue entrance.

You are always welcome to dress to impress 😉 but many delegates will travel to the party right from the WAS#18 Convention centre so, business casual attire is more than ok! Remember, it is an open-air venue and it will be October, so bring a jacket with you just in case.

Be a part of this great event

The Šibenik region offers many opportunities for tailored events and if you would like to explore the options.