Mohamed Fahim

Mohamed Fahim

Expert in Asterisk, A2billing, Elastix and AWS, Cloud telephony

Colombo, Sri Lanka



What's the difference?

Over the last nine years I have actively engaged in designing and implementing VOIP telephony related infrastructure which involved in installation, provisioning and commissioning of highly complex VOIP solutions using Asterisk, A2billing, Elastix, Asternic, PIAF, Trixbox and Amazon AWS cloud telephony, Azure, HP Cloud, Rackspace and Digital Ocean Asterisk telephony installation. Provides call centre solutions using Asterisk, A2billing and Asternic. G729/G723 codec installation also Genband C3, …


Work History & Feedback

Cisco IVR scripting consultation

“I' ve hired him for Cisco IVR, but I didn't mentioned in the title of the work.”
Fixed Price $5

Asterix phone system configuration and troubleshooting

“Worked well. Knowledgeable and professional.”
0 hrs @ $14.44/hr
Earned $2

DD-WRT QoS Customization

“It was a pleasure working with Mohamed. He gave insight and guidance for what turned out to be a superior solution. He successfully implemented the solution and everything is working well.”
12 hrs @ $14.44/hr
Earned $171


“Extremely capable and innovative provider of VoIP support and design. Fahim is also very very good with networking and provided a lot of advice on N/W performance even though it was outside the scope of his contract. Communication skills are very good. I keep in contact with Fahim and will undoubtedly use him again in the future.”
176 hrs @ $12.22/hr
Earned $2,106

Install A2billing on Asterisk FreePbx Centos

“It was a pleasure to work with him, thanks . Hi will be our asterisk and A2B guru”
Fixed Price $250

Asterisk system configuration

“Very good, quick and professional job. I recommend this contractor.”
Fixed Price $1,111

Asterisk / PBX / VOIP expert to train a french team in France (the team can speak english)

Job in progress

9 hrs @ $16.00/hr
Earned $139
Tests Taken
Name Percentile Score



Networking Concepts Test


Voice Over IP Test