Configure GrandStream SIP Trunk.

Configure GrandStream 502 ATA with DIDForSale SIP Trunking Service. You can get the phone number from anywhere in US and point it to your GS 502 ATA anywhere in the world. There is not extra charge for routing calls to your ata.

Free Phone Conferencing

DIDForSale is leading nationwide SIP Trunking service provider. Along with largest coverage and best rates our customer enjoy free conferencing services. Free conference call services allow you to meet by telephone with your customers, relatives or colleagues.

Sip Trunking for Dummies

Don’t know much about SIP Trunking? No worries! SIP Trunking can be, and is very painless and easy to switch to. Simply look up SIP Trunk provider via just about any search engine. The flavors will vary, and depending on how much you choose to do yourself, so...


You can continue to utilize a PRI trunk while running a VOIP server and utilizing the SIP protocol internally.   However there are several issues that come up due to this configuration. First, you will need a PRI box, that basically takes the PRI stream and converts...