I want to buy cheap ATA analog telephone adapter with SIP 
based with codec: G729 and G723. Please send your product 
photo and FOB price. I already bought some of the cheap 
ATA from China, some works great and some not. 
I want a good quality but with cheaper price to do 
business for long term. 

Please specify: 
1. What are available Codec
2. SIP Based
3. How many fxs and fxo port? 
4. Send me user manual in pdf file
5. Product picture
6. Price