Beschreibung
Roaming Tester
The successful candidate would be responsible for the restoration of faults with the Roaming Services of MO/MT voice, SMS, Data and MMS for inbound and outbound customers and providing updates on incidents to relevant stakeholders, Operating companies overseas and Roaming partners.
Main Responsibilities:
- Investigate inbound & outbound roaming faults in order to restore service for the customer using the relevant traces of MAP, ISUP, MNP, SCCP and IP - approx. 100 tickets a month
- Work closely with Roaming Partners, 3rd party suppliers and element owners within 2nd line
- Provide clear, concise communications to the stakeholders above at all times
- Raise work orders/change requests to implement roaming partners IR21 changes of NDC, IP and GT on the network
- Ensure all work is carried out and documented in accordance with required standards, methods and procedures
- Prioritise and schedule incoming incidents and requests
- Facilitate the resolution of incidents and work within cross functional teams when necessary to drive problem resolution
- Deliver reactive management, responding to support requests, typically via WOW, Remedy, e-mail and escalations.
- Occasional out of hours work on a rota basis to manage major issues will be an element of this role.
As a Roaming Specialist your skills and qualifications will ideally include:
- Good knowledge of 2G/3G/4G Inbound/Outbound Voice & Data Roaming call flows, International SMS, MMS & MNP and 2G/3G/4G, GRX, roaming service network architecture and service specific support tools (approx. 6)
- Good knowledge of Camel
- Knowledge of core switching network, including HLR's, MSC's, MGW's, SGW's, HLR
- Knowledge of using network statistics, networks traces and drive trialling logs to analyse and improve network performance
- Experience of IREG test cases and troubleshooting
- Understanding of HLR profiles eg BOAC, BOIC, BOICEXHSC
- Good knowledge of SS7 & Sigtran Protocols
- Knowledge of EU Roaming Regulations beneficial
- Experience of investigating roaming service issues & troubleshooting methodologies
- Experience of using network statistics, networks traces and drive trialling logs to analyse and improve network performance
- Strong communication (including presenting complex technical information in plain language) and decision making skills
Desired
- HNC or higher in related discipline
- Knowledge of SIP/RTP Protocols
- Understanding/awareness of IMS networks
- ITIL Foundation Certification