Configure Grandstream HT503 as PSTN gateway to freepbx

Hi, I have been working with Cisco VoIP since 2001 and Asterisk and freepbx ,trixbox, elastix since 2007. I'm very new to the site so trying to bid as low as possible and get better reviews as much as possible. Tha Więcej

Hello, I have experience with other grandstream voip gateways. Alsa I very good with asterisk/freepbx.

Hello dear sir, i can configure your Grandstream gateway. I have a lot experience with asterisk and freepbx. Please contact me if you interested in .Thanks.

Hi , I have experiencie with gateways as grandstream, cisco, sangoma with SIP signailing with asterisk. i am php developer too.

A proposal has not yet been provided

Will provide the required configuration for conectivity to ha

Hello, I'm an Italian computer engineer with a long experience in VoIP Systems. I've set up a lot of PBX with Elastix (and Asterisk in general) & with 3CX (my company is partner), so I know what I do. Please Więcej

Hi, We can handle your project professionally as we are expert in VoIP devices configurations as we are in call center business. waiting for your feedback. Regards, Tito

• VOIP device installation and Troubleshooting(Linksys, Cisco, Grand stream, Polycom) • To Configure IPPBX Installation and maintain support for IPPBX &clients accounts & adding the trunk, FXO, FXS and mapping the GS Więcej