====== Cisco/Linksys PAP2T ATA Connection Notes ======

**Mostly see here**: http://wiki.voip.ms/article/Cisco_Linksys_PAP2

**Also see here**: [[voice:ata:spa2100|Linksys/Sipura SPA-2100 ATA Connection Notes]]

===== Seven Digit Dialing =====

If you use a SIP trunk provider that requires 10 digits, modify the Dialplan in the Line1 (or Line2) settings by adding ''<:520>'' to the 7-digit section:

<file>
|<:520>[2-9]xxxxxx|
</file>

:!: In this example, we need ''520'' (our local area code) added to dial 7-digit calls.

<file>
(*xx|[3469]11|0|00|<:520>[2-9]xxxxxx|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.)
</file>

===== Audio Quality and CODEC =====

For maximum bandwidth savings, use ''g.729a''.  Otherwise, choose (the default) ''g.711u'' (uncompressed) for best audio quality.  It's roughly 24Kbps vs. 92Kbps.

Also, be sure to set the ''RTP Packet Size'' to ''0.020'' on the SIP tab.