## Appendix B LOT 2 – VOICE COMMUNICATIONS TECHNICAL SPECIFICATIONS 

## SERVICE 1:Fixed telephony services for the EMSA premises in Lisbon. This service must be operational by 17 April 2020 the latest. 

EMSA requires fixed telephony services for voice and data communications. Both services, analogue or digital, shall allow full national and international dialling. The availability of these services shall be >= 99.9%. 

The following items are required: 

a) Plain Old Telephone Service (POTS) 

PSTN lines (copper pairs) or equivalent solutions are required to serve specific legacy needs, i.e. backup lines, some faxes, etc. At present EMSA has 24 analogue lines whose numbers are: 

 8 lines: 21000390/91/92/93/94/95/96/97; 

 16 lines: 211204980/81/82/83/84/85/86/87/88/89/90/91/92/93/94/95 

Number portability is requested, and more numbers might be requested in the future which, if possible, shall be contiguous to existing ones. The tenderer can propose this service either continuing with an implementation based on PSTN lines, or rather proposing to migrate to equivalent digital solutions. The bidder must specify any fixed and recurring cost associated with these PSTN lines in its bid. 

b) Digital Voice Communications 

EMSA currently has 5 blocks of 100 numbers: 

 +351-211209-2xx, -3xx and -4xx 

 +351-211214-6xx and 7xx 

The tenderer shall guarantee number portability for those blocks, as well as the possibility to increase the number of blocks on contiguous ranges if possible. 

The current implementation is based on ISDN connectivity: two Primary Rate ISDN lines are currently supplied. At current stage no more than 30 channels are required; nevertheless, two lines are being used for resilience (i.e. each can be a fractional E1). These are E1 (G.703/G.704) connections delivered on RJ48 interfaces. These connections are currently terminated on two Cisco 3945 Voice Gateway with VWIC-1MFT- E1 interfaces, which are currently owned and managed by EMSA. Those two routers are in turn connected to a Cisco Call Manager (9.x) currently managed by EMSA. 

The tenderer can propose this service either continuing with an implementation based on ISDN connectivity, or rather proposing to migrate to SIP Trunk. Either way it shall be guaranteed that the service is fully operational by 17 April 2020 at the latest, including all needed equipment, before the current contract expires. 

