Adtran 220T1 Manual Do Utilizador

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Abstract 
The ShoreTel system has some known limitations with SIP trunking, please refer to ShoreTel‟s 
Administration Guide, chapter 18, for the SIP trunking limitations.  Some customers may have the need to 
implement a SIP trunk from an Internet Telephony Service Provider (ITSP) to take advantage of reduced 
telephony costs, but they require some of the features that aren‟t supported on a ShoreTel system, via SIP 
trunks.  In order for the customer to take advantage of the ITSP‟s offerings and not be affected by ShoreTel 
SIP trunk limitations they will need to implement an Integrated Access Device (IAD) to convert the SIP 
signaling to a T1 PRI.  In this manner ShoreTel will not have any feature limitations and the customer can 
still take full advantage of the ITSP‟s offerings. 
This solution includes Bandwidth.com SIP trunk, ADTRAN‟s market-leading Total Access® series of 
routing, switching and IP gateway products, along with the ShoreTel ShoreGear® IP PBX and ShorePhone
When combined with the ShoreTel IP Telephony platform, this solution introduces a new level of value into 
network operations with savings that extend well beyond the initial purchase price. ADTRAN platforms are 
specifically designed for business VoIP networks with enhanced performance and functionality. The 
ADTRAN platforms provide all of the robust routing, switching, Quality of Service (QoS) and security 
features needed to deploy a world-class business VoIP solution. Application Diagrams of the product 
scenarios tested with the ShoreTel ShoreGear switch appear in Figure A below. 
 
Figure A:  ShoreTel’s ShoreGear, Adtran’s Total Access 916e connected with Bandwidth.com 
 
 
 
 
  T P P   A P P   N O T E  
TPP: 10273    
Date:  June, 2010 
 Product: ShoreTel |ADTRAN
 
System version: ShoreTel 10.x